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ASUS X99 Deluxe II Review | 107 Data compared

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  • Avg. price: ~£190
  • CPU socket: LGA 2011-3
  • Chipset: Intel X99
  • Form factor: ATX

ASUS X99 Deluxe II review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

6.6

Overall score

What it is: An overall evaluation of the motherboard's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best motherboards on the market.

Score components:

90.0%

6.6

Technical Score

10.0%

7.0

User score

Good
6.6

Technical Score

What it is: An assessment of the motherboard's technical performance, covering key areas such as power delivery, CPU and memory support, expansion, storage, connectivity, cooling, BIOS features, and design.

When it matters: When you want to compare motherboards based on technical performance and available features.

Score components:

19.0%

6.9

Memory

16.0%

6.5

Platform & Features

16.0%

5.0

Storage

15.0%

6.9

Network

13.0%

7.5

Ports & USB

8.0%

5.4

Expansion

8.0%

7.0

Power & Cooling

5.0%

8.4

Audio

Good
7.0

User score

What it is: A rating that combines user reviews and the total number of reviews received by the motherboard.

When it matters: When you want to understand how a motherboard performs in real-world builds and how reliable it is in terms of stability, BIOS usability, connectivity, and long-term ownership.

Score components:

70.0%

7.5

User reviews

30.0%

5.9

Popularity

User score:
United Kingdom
amazon
3.8
(41)
United States
Amazon_logo.png
3.7
(89)

(Reviews last updated: May 2026)

Very good
  • 3.7
    Gaming

    Score components:

    28.0%

    5.2

    VRM phases

    22.0%

    3.3

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    3.4

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

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Best prices in UK

Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Asus X99 Deluxe II is a high-end ATX motherboard designed for Intel Core i7 and Xeon E5 processors on the LGA2011-v3 socket, featuring the Intel X99 chipset and eight DDR4 DIMM slots supporting up to 128GB of memory at speeds exceeding 3333MHz. Its main characteristics include an 8-phase digital power design, an exclusive OC Socket for enhanced stability, and extensive connectivity such as dual Intel Gigabit LAN, 3x3 802.11ac Wi-Fi, and multiple high-speed storage options including dual U.2 ports and a 32Gbps M.2 slot. Key pros include its exceptional feature set, robust overclocking performance facilitated by 5-Way Optimization, and a rich accessory bundle that includes a ThunderboltEX 3 card and fan extension hub. However, its complex lane-sharing architecture can make configuration difficult, it lacks 4-way multi-GPU support, and it carries a premium price point compared to standard X99 alternatives.

Technical Specifications of ASUS X99 Deluxe II

Technical Score

What it is: An assessment of the motherboard's technical performance, covering key areas such as power delivery, CPU and memory support, expansion, storage, connectivity, cooling, BIOS features, and design.

When it matters: When you want to compare motherboards based on technical performance and available features.

Score components:

19.0%

6.9

Memory

16.0%

6.5

Platform & Features

16.0%

5.0

Storage

15.0%

6.9

Network

13.0%

7.5

Ports & USB

8.0%

5.4

Expansion

8.0%

7.0

Power & Cooling

5.0%

8.4

Audio

6.6
ASUS X99 Deluxe II has a technical score of 6.59 points, which is higher than that of 54.8% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the motherboard.

When it matters: When you want to understand how a motherboard performs in real-world builds and how reliable it is in terms of stability, BIOS usability, connectivity, and long-term ownership.

Score components:

70.0%

7.5

User reviews

30.0%

5.9

Popularity

User score:
United Kingdom
amazon
3.8
(41)
United States
Amazon_logo.png
3.7
(89)

(Reviews last updated: May 2026)

7.0
ASUS X99 Deluxe II has a user score of 7 points, which is lower than that of 78.3% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the motherboard.
When it matters: When you prefer a motherboard that has already been bought and reviewed by many other users.
5.9
ASUS X99 Deluxe II has a popularity of 5.9 points, which is higher than 62.8% of products in this category.
Ratio quality/price

What it is: An indicator that combines the motherboard's overall rating with its cost.

When it matters: When you are looking for a motherboard that offers a strong balance of features, performance, and price.

Score components:

60.0%

6.6

Overall score

40.0%

9.5

Price

7.5
ASUS X99 Deluxe II has a quality-to-price ratio of 7.5 points, which is higher than 54% of products in this category.
Brand name
What it is: The brand that makes the motherboard.
When it matters: When you have a brand preference for support, BIOS, or build quality.

Importance: MEDIUM

Asus
CPU socket
What it is: The socket type the motherboard is built to support.
When it matters: When you need the motherboard to match a specific CPU.

Importance: HIGH

LGA 2011-3
ASUS X99 Deluxe II uses the LGA 2011-3 CPU socket, which is less advanced than that of 84.3% of motherboards and equal to that of 2.5% of motherboards.
CPU platform

Importance: MEDIUM

Intel
Chipset
What it is: The chipset that defines the motherboard platform and many of its features.
When it matters: When you compare platform features, connectivity, and CPU support.

Importance: HIGH

Intel X99
ASUS X99 Deluxe II uses the Intel X99 chipset, which is less advanced than that of 67.4% of motherboards and equal to that of 2.4% of motherboards.
Form factor
What it is: The physical size standard of the motherboard, such as ATX or Micro-ATX.
When it matters: When you need the board to fit a specific case size.

Importance: HIGH

ATX
ASUS X99 Deluxe II has the ATX form factor, which is more versatile than that of 47.8% of motherboards and equal to that of 52.2% of motherboards.
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DDR memory version
What it is: The RAM generation the motherboard supports, such as DDR4 or DDR5.
When it matters: When you need the board to match a certain memory platform.

Importance: HIGH

Good value: DDR5

DDR4
ASUS X99 Deluxe II uses DDR4 memory, which is newer than that of 13.6% of motherboards and equal to that of 51% of motherboards.
Memory slots
What it is: The number of RAM slots on the motherboard.
When it matters: When you want more room for future memory upgrades.

Importance: HIGH

Good value: >=4

8
ASUS X99 Deluxe II has 8 Memory slots, which is more than 94% of motherboards and equal to 5.7% of motherboards.
Maximum memory capacity
What it is: The largest total amount of RAM the motherboard supports.
When it matters: When you plan a build with very high memory capacity.

Importance: HIGH

Good value: >=128 GB

128 GB
ASUS X99 Deluxe II supports up to 128 GB of memory, which is more than 40.4% of motherboards and equal to 32.1% of motherboards.
Memory channels
What it is: The memory channel configuration supported by the motherboard platform.
When it matters: When memory bandwidth matters for your build.

Importance: MEDIUM

4
ASUS X99 Deluxe II supports 4 memory channels, which is more than 92.8% of motherboards and equal to 6.9% of motherboards.
Maximum RAM speed
What it is: The highest officially supported memory speed for the motherboard.
When it matters: When you choose RAM and want to know the supported speed ceiling.

Importance: HIGH

Good value: >=6400 MT/s

3,333 MT/s
ASUS X99 Deluxe II supports memory speeds up to 3333 MT/s, which is lower than that of 61.6% of motherboards and equal to that of 0.6% of motherboards.
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N. of M.2 sockets
What it is: The number of M.2 slots available on the motherboard.
When it matters: When you want room for more NVMe or M.2 drives.

Importance: HIGH

Good value: >=3

1
ASUS X99 Deluxe II has 1 M.2 sockets, which is fewer than 69.2% of motherboards and equal to 19.1% of motherboards.
M.2 slot interface per slot
What it is: The storage or PCIe interface available for each M.2 slot on the motherboard.
When it matters: When you want to check which drives each M.2 slot can use.

Importance: HIGH

1x PCIe 3.0 x4
ASUS X99 Deluxe II offers 1x PCIe 3.0x4 for M.2 slot interfaces, which is slower than that of 72.5% of motherboards and equal to that of 1.2% of motherboards.
bundled card slots excluded.
N. of SATA 3 connectors
What it is: The number of SATA 6Gb/s connectors on the motherboard.
When it matters: When you plan to connect multiple SATA drives.

Importance: MEDIUM

Good value: >=6

8
ASUS X99 Deluxe II has 8 SATA 3 connectors, which is more than 85.5% of motherboards and equal to 11.2% of motherboards.
Supported RAID levels
What it is: The RAID modes officially supported by the motherboard storage platform.
When it matters: When you plan to use multiple drives in a RAID setup.

Importance: MEDIUM

0/1/5/10
ASUS X99 Deluxe II supports RAID levels 0/1/5/10, which is broader than 31.8% of motherboards and equal to 68.2% of motherboards.
SATA only
NVMe RAID support
What it is: Shows whether the board supports RAID configurations that use NVMe SSDs.
When it matters: When you plan to use multiple NVMe drives in RAID.

Importance: LOW

no
ASUS X99 Deluxe II does not support NVMe RAID. 59.8% of motherboards support this feature.
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N. of PCIe 5.0 x16 slots
What it is: The number of PCIe 5.0 x16 physical slots on the motherboard.
When it matters: When you want the newest high-bandwidth expansion slots.

Importance: HIGH

Good value: >=1

0
ASUS X99 Deluxe II has 0 PCIe 5.0x16 slots, which is equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
What it is: The number of PCIe 4.0 x16 physical slots on the motherboard.
When it matters: When you want more room for modern expansion cards.

Importance: HIGH

Good value: >=1

0
ASUS X99 Deluxe II has 0 PCIe 4.0x16 slots, which is equal to 55.6% of motherboards.
N. of PCIe 3.0 x16 slots
What it is: The number of PCIe 3.0 x16 physical slots on the motherboard.
When it matters: When you need more full-length expansion slots.

Importance: MEDIUM

4
ASUS X99 Deluxe II has 4 PCIe 3.0x16 slots, which is more than 93.9% of motherboards and equal to 3.5% of motherboards.
PCIe slot electrical configuration
What it is: The actual lane wiring used by the motherboard PCIe slots.
When it matters: When you need to know how much bandwidth each slot really gets.

Importance: HIGH

x16/x16/x8, x8/x8/x8/x8, x16/x16
ASUS X99 Deluxe II uses x16/x16/x8, x8/x8/x8/x8, x16/x16 for PCIe slot electrical configuration, which is more flexible than that of 94.9% of motherboards.
Depends on CPU.
PCIe bifurcation support
What it is: Shows whether the board can split PCIe lanes across multiple devices from one slot or link.
When it matters: When you plan multi-SSD adapters or more advanced expansion setups.

Importance: MEDIUM

yes
ASUS X99 Deluxe II supports PCIe bifurcation. 39.1% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
What it is: The total number of rear USB ports available on the motherboard.
When it matters: When you use many USB devices directly from the back of the PC.

Importance: MEDIUM

Good value: >=8

12
ASUS X99 Deluxe II has 12 USB ports (rear I/O), which is more than 93% of motherboards and equal to 5.5% of motherboards.
Total USB ports (including headers)
What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
When it matters: When you want to know the board's full USB expansion potential.

Importance: MEDIUM

Good value: >=14

22
ASUS X99 Deluxe II has 22 USB ports (including headers), which is more than 97.8% of motherboards and equal to 1% of motherboards.
Total USB-C ports (rear I/O)
What it is: The total number of rear USB-C ports on the motherboard.
When it matters: When you want more USB-C devices connected without adapters.

Importance: MEDIUM

Good value: >=1

1
ASUS X99 Deluxe II has 1 USB-C ports (rear I/O), which is more than 35.4% of motherboards and equal to 48.8% of motherboards.
Total USB-C ports (including headers)
What it is: The total number of USB-C ports supported when rear ports and internal headers are counted together.
When it matters: When you want more USB-C connectivity across the whole build.

Importance: MEDIUM

Good value: >=2

1
ASUS X99 Deluxe II has 1 USB-C ports (including headers), which is more than 30.5% of motherboards and equal to 21.3% of motherboards.
N. of USB 3.2 Gen2x2 ports (USB-C)
What it is: The number of rear USB 3.2 Gen2x2 Type-C ports on the motherboard.
When it matters: When you want very fast USB-C connectivity on the rear I/O.

Importance: HIGH

Good value: >=1

0
ASUS X99 Deluxe II has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
Show more
LAN speed
What it is: The maximum wired Ethernet speed supported by the motherboard.
When it matters: When you want faster wired networking.

Importance: HIGH

Good value: 2.5GbE

1 Gbps
ASUS X99 Deluxe II supports LAN speeds up to 1 Gbps, which is lower than that of 50.8% of motherboards and equal to that of 49.1% of motherboards.
dual 1GbE ports
LAN controller
What it is: The model of onboard Ethernet controller used by the motherboard.
When it matters: When you compare networking hardware quality and features.

Importance: MEDIUM

Intel I218-V + Intel I211-AT
ASUS X99 Deluxe II uses the Intel I218-V + Intel I211-AT LAN controller, which is less advanced than that of 59.1% of motherboards and equal to that of 0.5% of motherboards.
N. of RJ45 ports
What it is: The number of wired Ethernet ports on the motherboard.
When it matters: When you need one or more wired network connections.

Importance: LOW

2
ASUS X99 Deluxe II has 2 RJ45 ports, which is more than 85.6% of motherboards and equal to 13.5% of motherboards.
Wi-Fi connectivity
What it is: Shows whether the motherboard includes onboard Wi-Fi hardware instead of requiring a separate adapter.
When it matters: When you want wireless networking without adding an extra card.

Importance: MEDIUM

yes
ASUS X99 Deluxe II supports Wi-Fi connectivity. 50.9% of motherboards support this feature.
Wi-Fi version
What it is: The supported Wi-Fi generation, such as Wi-Fi 6 or Wi-Fi 7.
When it matters: When you care about wireless speed and router compatibility.

Importance: MEDIUM

Good value: Wi-Fi 6E (802.11ax)

Wi-Fi 5 (802.11ac)
ASUS X99 Deluxe II supports Wi-Fi 5 (802.11ac), which is newer than that of 49.7% of motherboards and equal to that of 10.7% of motherboards.
Show more
Audio codec
What it is: The onboard audio codec used by the motherboard.
When it matters: When sound quality from the built-in audio matters to you.

Importance: MEDIUM

Realtek ALC1150
ASUS X99 Deluxe II uses the Realtek ALC1150 audio codec, which is more advanced than that of 52.3% of motherboards and equal to that of 9.3% of motherboards.
Audio channels
What it is: The audio channel configuration supported by the onboard sound solution.
When it matters: When you want surround sound from the motherboard audio outputs.

Importance: LOW

Good value: 7.1

7.1
ASUS X99 Deluxe II offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
full 7.1 needs front panel audio.
Audio SNR
What it is: The signal-to-noise ratio of the onboard audio solution.
When it matters: When you care about cleaner onboard audio output.

Importance: MEDIUM

Good value: >=120 dB

112 dB
ASUS X99 Deluxe II has an audio SNR of 112 dB, which is lower than that of 53.7% of motherboards and equal to that of 2.1% of motherboards.
Headphone amp support
What it is: Shows whether the onboard audio path includes dedicated headphone amplification for harder-to-drive headsets.
When it matters: When you use harder-to-drive headphones from the onboard audio.

Importance: LOW

yes
ASUS X99 Deluxe II supports a headphone amp. 37% of motherboards support this feature.
N. of 3.5mm audio jacks
What it is: The number of rear 3.5mm audio jacks on the motherboard.
When it matters: When you want more analog audio connection options.

Importance: LOW

Good value: >=5

5
ASUS X99 Deluxe II has 5 3.5mm audio jacks, which is more than 49.8% of motherboards and equal to 36.8% of motherboards.
Show more
VRM phases
What it is: The number of power-delivery phases used by the motherboard VRM.
When it matters: When you care about CPU power delivery and overclocking headroom.

Importance: HIGH

Good value: >=12

8
ASUS X99 Deluxe II has 8 VRM phases, which is fewer than 71.9% of motherboards and equal to 6.3% of motherboards.
N. of CPU power connectors
What it is: The number of CPU power connectors on the motherboard.
When it matters: When you care about power delivery for higher-end CPUs.

Importance: HIGH

Good value: >=2

2
ASUS X99 Deluxe II has 2 CPU power connectors, which is more than 54.6% of motherboards and equal to 45.3% of motherboards.
N. of fan headers
What it is: The number of headers available for case or CPU fans.
When it matters: When your build uses several fans.

Importance: MEDIUM

Good value: >=6

6
ASUS X99 Deluxe II has 6 fan headers, which is more than 50.3% of motherboards and equal to 22.3% of motherboards.
Pump header
What it is: Shows whether the motherboard includes a dedicated header designed for a liquid-cooling pump.
When it matters: When you build with an AIO or custom liquid cooling loop.

Importance: MEDIUM

yes
ASUS X99 Deluxe II has a pump header. 23.1% of motherboards include this feature.
Pump header max current
What it is: The maximum current the dedicated pump header can supply.
When it matters: When you want to make sure the pump header can power your cooling setup.

Importance: LOW

Good value: >=2 A

1 A
ASUS X99 Deluxe II supports up to 1 A on the pump header, which is lower than that of 58.4% of motherboards and equal to that of 15.9% of motherboards.
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ASUS X99 Deluxe II vs the average motherboard

  • 4 more rear USB ports
    ASUS X99 Deluxe II has more rear USB ports than the average motherboard (12 vs 8). The average motherboard has 8 rear USB port/s.
    What it is: The total number of rear USB ports available on the motherboard.
    When it matters: When you use many USB devices directly from the back of the PC.

    Importance: MEDIUM

    Good value: >=8

    ASUS X99 Deluxe II has more rear USB ports than the average motherboard (12 vs 8). The average motherboard has 8 rear USB port/s.12 vs 8
  • 3 more PCIe x8 slots
    ASUS X99 Deluxe II has more PCIe x8 slots than the average motherboard (3 vs 0). The average motherboard has 0 PCIe x8 slot/s.
    What it is: The number of PCIe x8 slots on the motherboard.
    When it matters: When you need more bandwidth for add-in cards beyond x4.

    Importance: MEDIUM

    ASUS X99 Deluxe II has more PCIe x8 slots than the average motherboard (3 vs 0). The average motherboard has 0 PCIe x8 slot/s.3 vs 0
  • 2 more USB 3.2 Gen2 ports
    ASUS X99 Deluxe II has more USB 3.2 Gen2 ports than the average motherboard (3 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    What it is: The number of rear USB 3.2 Gen2 Type-A ports on the motherboard.
    When it matters: When you want faster USB-A ports for storage or accessories.

    Importance: MEDIUM

    Good value: >=2

    ASUS X99 Deluxe II has more USB 3.2 Gen2 ports than the average motherboard (3 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.3 vs 1
  • 4 more memory slots
    ASUS X99 Deluxe II has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.
    What it is: The number of RAM slots on the motherboard.
    When it matters: When you want more room for future memory upgrades.

    Importance: HIGH

    Good value: >=4

    ASUS X99 Deluxe II has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.8 vs 4
  • 1 more RJ45 ports
    ASUS X99 Deluxe II has more RJ45 ports than the average motherboard (2 vs 1). The average motherboard has 1 RJ45 port/s.
    What it is: The number of wired Ethernet ports on the motherboard.
    When it matters: When you need one or more wired network connections.

    Importance: LOW

    ASUS X99 Deluxe II has more RJ45 ports than the average motherboard (2 vs 1). The average motherboard has 1 RJ45 port/s.2 vs 1
  • More flexible PCIe lane configuration
    ASUS X99 Deluxe II has more flexible PCIe lane configuration than the average motherboard (x16/x16/x8, x8/x8/x8/x8, x16/x16 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
    Depends on CPU.
    What it is: The actual lane wiring used by the motherboard PCIe slots.
    When it matters: When you need to know how much bandwidth each slot really gets.

    Importance: HIGH

    ASUS X99 Deluxe II has more flexible PCIe lane configuration than the average motherboard (x16/x16/x8, x8/x8/x8/x8, x16/x16 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.x16/x16/x8, x8/x8/x8/x8, x16/x16 vs x16/x1
  • 7 more total USB connections
    ASUS X99 Deluxe II has more total USB connections than the average motherboard (22 vs 15). The average motherboard has 15 total USB connections.
    What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
    When it matters: When you want to know the board's full USB expansion potential.

    Importance: MEDIUM

    Good value: >=14

    ASUS X99 Deluxe II has more total USB connections than the average motherboard (22 vs 15). The average motherboard has 15 total USB connections.22 vs 15
  • 2 more U.2 sockets
    ASUS X99 Deluxe II has more U.2 sockets than the average motherboard (2 vs 0). The average motherboard has 0 U.2 socket/s.
    What it is: The number of U.2 connectors on the motherboard.
    When it matters: When you use enterprise-style U.2 storage devices.

    Importance: LOW

    ASUS X99 Deluxe II has more U.2 sockets than the average motherboard (2 vs 0). The average motherboard has 0 U.2 socket/s.2 vs 0
  • Includes POST code display
    ASUS X99 Deluxe II has a POST code display, while the average motherboard does not. 27.2% of motherboards include a POST code display.
  • Rear-panel CMOS reset button
    ASUS X99 Deluxe II has a rear-panel CMOS reset button, while the average motherboard does not. 26.5% of motherboards include a rear-panel CMOS reset button.
  • Broader Windows support
    ASUS X99 Deluxe II has broader Windows support than the average motherboard (Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 7 vs Windows 11, Windows 10). The average motherboard supports Windows 11, Windows 10.
  • Includes onboard power button
    ASUS X99 Deluxe II has an onboard power button, while the average motherboard does not. 27.7% of motherboards include an onboard power button.
  • Includes onboard reset button
    ASUS X99 Deluxe II has an onboard reset button, while the average motherboard does not. 27.6% of motherboards include an onboard reset button.
  • 4 more memory slots
    ASUS X99 Deluxe II has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.
  • Supports ECC memory
    ASUS X99 Deluxe II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • More memory channels
    ASUS X99 Deluxe II has more memory channels than the average motherboard (4 vs 2). The average motherboard has 2 memory channel/s.
  • 2 more U.2 sockets
    ASUS X99 Deluxe II has more U.2 sockets than the average motherboard (2 vs 0). The average motherboard has 0 U.2 socket/s.
  • 4 more SATA 3 connectors
    ASUS X99 Deluxe II has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.
  • 3 more PCIe x8 slots
    ASUS X99 Deluxe II has more PCIe x8 slots than the average motherboard (3 vs 0). The average motherboard has 0 PCIe x8 slot/s.
  • More flexible PCIe lane configuration
    ASUS X99 Deluxe II has more flexible PCIe lane configuration than the average motherboard (x16/x16/x8, x8/x8/x8/x8, x16/x16 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
  • 3 more PCIe 3.0x16 slots
    ASUS X99 Deluxe II has more PCIe 3.0x16 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
  • 4 more rear USB ports
    ASUS X99 Deluxe II has more rear USB ports than the average motherboard (12 vs 8). The average motherboard has 8 rear USB port/s.
  • 2 more USB 3.2 Gen2 ports
    ASUS X99 Deluxe II has more USB 3.2 Gen2 ports than the average motherboard (3 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
  • 7 more total USB connections
    ASUS X99 Deluxe II has more total USB connections than the average motherboard (22 vs 15). The average motherboard has 15 total USB connections.
  • 1 more USB 3.2 Gen2 USB-C ports
    ASUS X99 Deluxe II has more USB 3.2 Gen2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2 USB-C port/s.
  • 1 more USB 3.2 Gen1 headers
    ASUS X99 Deluxe II has more USB 3.2 Gen1 headers than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen1 header/s.
  • 1 more USB4 or Thunderbolt headers
    ASUS X99 Deluxe II has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
  • 2 more USB 2.0 ports
    ASUS X99 Deluxe II has more USB 2.0 ports than the average motherboard (4 vs 2). The average motherboard has 2 USB 2.0 port/s.
  • 1 more RJ45 ports
    ASUS X99 Deluxe II has more RJ45 ports than the average motherboard (2 vs 1). The average motherboard has 1 RJ45 port/s.
  • Supports Wi-Fi
    ASUS X99 Deluxe II supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • Supports Bluetooth
    ASUS X99 Deluxe II supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
  • 1 more CPU power connectors
    ASUS X99 Deluxe II has more CPU power connectors than the average motherboard (2 vs 1). The average motherboard has 1 CPU power connectors.
  • 1 more fan headers
    ASUS X99 Deluxe II has more fan headers than the average motherboard (6 vs 5). The average motherboard has 5 fan header/s.

Total
Platform & Features
Memory
Storage
Expansion
Ports & USB
Network
Power & Cooling
  • More basic motherboard chipset
    ASUS X99 Deluxe II has more basic motherboard chipset than the average motherboard (Intel X99 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No integrated graphics support
    ASUS X99 Deluxe II does not support integrated graphics, while the average motherboard does. 89.4% of motherboards support integrated graphics.
  • Not ready for Windows 11
    ASUS X99 Deluxe II is not ready for Windows 11, while the average motherboard is. 77.1% of motherboards are ready for Windows 11.
  • 5 years older release date
    ASUS X99 Deluxe II is older than the average motherboard (2,016 vs 2,021). The average motherboard was released in 2,021.
    May 2016
  • 27.5% lower maximum RAM speed
    ASUS X99 Deluxe II has a lower maximum RAM speed than the average motherboard (3,333 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • 32.4% lower overclocked RAM speed
    ASUS X99 Deluxe II has a lower overclocked RAM speed than the average motherboard (3,333 MT/s vs 4,933 MT/s). The average motherboard supports overclocked RAM speed of 4,933 MT/s.
  • Slower M.2 slot interfaces
    ASUS X99 Deluxe II has slower M.2 slot interfaces than the average motherboard (1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    bundled card slots excluded.
  • No NVMe RAID support
    ASUS X99 Deluxe II does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • 1 fewer M.2 sockets
    ASUS X99 Deluxe II has fewer M.2 sockets than the average motherboard (1 vs 2). The average motherboard has 2 M.2 socket/s.
  • 1 fewer DisplayPort outputs
    ASUS X99 Deluxe II has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
  • 1 fewer PS/2 ports
    ASUS X99 Deluxe II has fewer PS/2 ports than the average motherboard (0 vs 1). The average motherboard has 1 PS/2 port/s.
  • 1 fewer HDMI outputs
    ASUS X99 Deluxe II has fewer HDMI outputs than the average motherboard (0 vs 1). The average motherboard has 1 HDMI outputs.
  • 60% lower LAN speed
    ASUS X99 Deluxe II has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
    dual 1GbE ports
  • Older Bluetooth version
    ASUS X99 Deluxe II has older Bluetooth version than the average motherboard (4 vs 5.4). The average motherboard supports Bluetooth 5.4.
  • 3 dB lower audio SNR
    ASUS X99 Deluxe II has a lower audio SNR than the average motherboard (112 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • 2 fewer ARGB headers
    ASUS X99 Deluxe II has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.
  • Fewer VRM phases
    ASUS X99 Deluxe II has fewer VRM phases than the average motherboard (8 vs 10). The average motherboard has 10 VRM phase/s.
  • 61 mm wider
    ASUS X99 Deluxe II is wider than the average motherboard (305 mm vs 244 mm). The average motherboard width is 244 mm.
  • 1 A lower pump header current limit
    ASUS X99 Deluxe II has a lower pump header current than the average motherboard (1 A vs 2 A). The average motherboard provides pump header current of 2 A.
  • More basic motherboard chipset
    ASUS X99 Deluxe II has more basic motherboard chipset than the average motherboard (Intel X99 vs Intel B860). The average motherboard uses Intel B860 chipset.
    What it is: The chipset that defines the motherboard platform and many of its features.
    When it matters: When you compare platform features, connectivity, and CPU support.

    Importance: HIGH

    ASUS X99 Deluxe II has more basic motherboard chipset than the average motherboard (Intel X99 vs Intel B860). The average motherboard uses Intel B860 chipset.Intel X99 vs Intel B860
  • 60% lower LAN speed
    ASUS X99 Deluxe II has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
    dual 1GbE ports
    What it is: The maximum wired Ethernet speed supported by the motherboard.
    When it matters: When you want faster wired networking.

    Importance: HIGH

    Good value: 2.5GbE

    ASUS X99 Deluxe II has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.1 Gbps vs 2.5 Gbps
  • Slower M.2 slot interfaces
    ASUS X99 Deluxe II has slower M.2 slot interfaces than the average motherboard (1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    bundled card slots excluded.
    What it is: The storage or PCIe interface available for each M.2 slot on the motherboard.
    When it matters: When you want to check which drives each M.2 slot can use.

    Importance: HIGH

    ASUS X99 Deluxe II has slower M.2 slot interfaces than the average motherboard (1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • No NVMe RAID support
    ASUS X99 Deluxe II does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
    What it is: Shows whether the board supports RAID configurations that use NVMe SSDs.
    When it matters: When you plan to use multiple NVMe drives in RAID.

    Importance: LOW

    ASUS X99 Deluxe II does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • 1 fewer M.2 sockets
    ASUS X99 Deluxe II has fewer M.2 sockets than the average motherboard (1 vs 2). The average motherboard has 2 M.2 socket/s.
    What it is: The number of M.2 slots available on the motherboard.
    When it matters: When you want room for more NVMe or M.2 drives.

    Importance: HIGH

    Good value: >=3

    ASUS X99 Deluxe II has fewer M.2 sockets than the average motherboard (1 vs 2). The average motherboard has 2 M.2 socket/s.1 vs 2
  • No integrated graphics support
    ASUS X99 Deluxe II does not support integrated graphics, while the average motherboard does. 89.4% of motherboards support integrated graphics.
    What it is: Shows whether the motherboard can output video from CPUs that include integrated graphics.
    When it matters: When you want video output without installing a graphics card.

    Importance: MEDIUM

    ASUS X99 Deluxe II does not support integrated graphics, while the average motherboard does. 89.4% of motherboards support integrated graphics.
  • 2 fewer ARGB headers
    ASUS X99 Deluxe II has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.
    What it is: The number of 3-pin addressable RGB headers available on the motherboard.
    When it matters: When you want to connect more ARGB lighting devices.

    Importance: LOW

    Good value: >=2

    ASUS X99 Deluxe II has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.0 vs 2
  • Fewer VRM phases
    ASUS X99 Deluxe II has fewer VRM phases than the average motherboard (8 vs 10). The average motherboard has 10 VRM phase/s.
    What it is: The number of power-delivery phases used by the motherboard VRM.
    When it matters: When you care about CPU power delivery and overclocking headroom.

    Importance: HIGH

    Good value: >=12

    ASUS X99 Deluxe II has fewer VRM phases than the average motherboard (8 vs 10). The average motherboard has 10 VRM phase/s.8 vs 10
Total
Overall
Platform & Features
Memory
Storage
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

United Kingdom
amazon
3.8
41 Reviews
United States
Amazon_logo.png
3.7
89 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS X99 Deluxe II?

  • Comprehensive connectivity including dual Gigabit LAN, 3x3 802.11ac Wi-Fi, and Bluetooth 4.0
  • Extensive storage options with dual U.2 slots, M.2 (32Gbps), and 10 SATA 6Gb/s ports
  • Highly generous accessory bundle including a ThunderboltEX 3 card, fan extension card, and Hyper M.2 x4 card
  • Excellent overclocking performance supported by the ASUS OC Socket and a robust 8-phase VRM design
  • User-friendly and intuitive UEFI BIOS with easy navigation
  • Aesthetic appeal featuring a clean black-and-white design with customizable Aura RGB lighting

What customers dislike about ASUS X99 Deluxe II?

  • High initial retail price (approx. $420), making it a significant investment even for enthusiasts
  • Higher power consumption compared to some competitors, especially with aggressive stock XMP profiles
  • The CPU socket area can feel 'claustrophobic' due to the dense layout of surrounding components
  • Reported long-term reliability issues by some users, including random BIOS resets or crashes
  • Complex PCIe lane distribution that requires careful manual checking to understand bandwidth sharing between slots

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