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ASRock Z370 Killer SLI AC Review | 107 Data compared

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  • Avg. price: ~£120
  • CPU socket: LGA 1151
  • Chipset: Intel Z370
  • Form factor: ATX

ASRock Z370 Killer SLI AC review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

5.7

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%

5.6

Technical Score

10.0%

6.2

User score

Good
5.6

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%

5.9

Memory

16.0%

6.6

Platform & Features

16.0%

6.0

Storage

15.0%

6.9

Network

13.0%

2.8

Ports & USB

8.0%

3.8

Expansion

8.0%

5.8

Power & Cooling

5.0%

6.0

Audio

Good
6.2

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%

7.4

User reviews

30.0%

3.3

Popularity

User score:
United States
Amazon_logo.png
3.7
(35)

(Reviews last updated: May 2026)

Good
  • 4.7
    Gaming

    Score components:

    28.0%

    5.9

    VRM phases

    22.0%

    5.5

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    4.7

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

  • No image
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Best prices in UK

    N/A~ £120

Best rankings

?

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

Verdict

The ASRock Z370 Killer SLI/ac is an ATX motherboard built for 8th Generation Intel Core processors (Socket 1151) featuring a 10-phase digital PWM design and support for dual-channel DDR4 memory overclocked up to 4266MHz+. Main characteristics include dual Ultra M.2 slots (PCIe Gen3 x4 & SATA3), built-in Intel 802.11ac Wi-Fi with Bluetooth 4.2, and multi-GPU support for NVIDIA Quad SLI and AMD 3-Way CrossFireX via reinforced steel PCIe slots. Its primary pros are its excellent value-to-performance ratio, robust overclocking stability for K-series CPUs, and inclusion of a front-panel USB 3.1 Gen1 Type-C header. However, notable cons include a lack of onboard diagnostic LEDs or physical power/reset buttons, limited fan headers, and the use of the older Realtek ALC892 audio codec instead of high-end alternatives.

Technical Specifications of ASRock Z370 Killer SLI AC

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%

5.9

Memory

16.0%

6.6

Platform & Features

16.0%

6.0

Storage

15.0%

6.9

Network

13.0%

2.8

Ports & USB

8.0%

3.8

Expansion

8.0%

5.8

Power & Cooling

5.0%

6.0

Audio

5.6
ASRock Z370 Killer SLI AC has a technical score of 5.6 points, which is lower than that of 67.2% 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%

7.4

User reviews

30.0%

3.3

Popularity

User score:
United States
Amazon_logo.png
3.7
(35)

(Reviews last updated: May 2026)

6.2
ASRock Z370 Killer SLI AC has a user score of 6.18 points, which is lower than that of 91.9% 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.
3.3
ASRock Z370 Killer SLI AC has a popularity of 3.3 points, which is lower than 57.1% 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%

5.7

Overall score

40.0%

9.9

Price

6.9
ASRock Z370 Killer SLI AC has a quality-to-price ratio of 6.9 points, which is lower than 66.6% 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

Asrock
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 1151
ASRock Z370 Killer SLI AC uses the LGA 1151 CPU socket, which is less advanced than that of 70.5% of motherboards and equal to that of 13.8% of motherboards.
300-series / v2 revision.
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 Z370
ASRock Z370 Killer SLI AC uses the Intel Z370 chipset, which is less advanced than that of 62.2% of motherboards and equal to that of 1.8% 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
ASRock Z370 Killer SLI AC 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
ASRock Z370 Killer SLI AC 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

4
ASRock Z370 Killer SLI AC has 4 Memory slots, which is more than 21.5% of motherboards and equal to 72.5% 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

64 GB
ASRock Z370 Killer SLI AC supports up to 64 GB of memory, which is less than 62.6% of motherboards and equal to 24.3% 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

2
ASRock Z370 Killer SLI AC supports 2 memory channels, which is more than 0.2% of motherboards and equal to 92.5% 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

4,266 MT/s
ASRock Z370 Killer SLI AC supports memory speeds up to 4266 MT/s, which is lower than that of 54.5% of motherboards and equal to that of 0.8% 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

2
ASRock Z370 Killer SLI AC has 2 M.2 sockets, which is more than 30.8% of motherboards and equal to 34.6% 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

2x PCIe 3.0 x4/SATA
ASRock Z370 Killer SLI AC offers 2x PCIe 3.0x4/SATA for M.2 slot interfaces, which is slower than that of 67.2% of motherboards and equal to that of 3.8% of motherboards.
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

6
ASRock Z370 Killer SLI AC has 6 SATA 3 connectors, which is more than 52.6% of motherboards and equal to 32.1% 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
ASRock Z370 Killer SLI AC supports RAID levels 0/1/5/10, which is broader than 31.8% of motherboards and equal to 68.2% of motherboards.
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

yes
ASRock Z370 Killer SLI AC supports NVMe RAID. 40.3% 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
ASRock Z370 Killer SLI AC 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
ASRock Z370 Killer SLI AC 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

2
ASRock Z370 Killer SLI AC has 2 PCIe 3.0x16 slots, which is more than 67.4% of motherboards and equal to 15.4% 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/x0, x8/x8
ASRock Z370 Killer SLI AC uses x16/x0, x8/x8 for PCIe slot electrical configuration, which is less flexible than that of 81.8% of motherboards and equal to that of 3.7% of motherboards.
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
ASRock Z370 Killer SLI AC supports PCIe bifurcation. 39.1% of motherboards support this feature.
x8/x8.
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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

6
ASRock Z370 Killer SLI AC has 6 USB ports (rear I/O), which is fewer than 64.2% of motherboards and equal to 32.9% 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

12
ASRock Z370 Killer SLI AC has 12 USB ports (including headers), which is fewer than 72.4% of motherboards and equal to 16.6% 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
ASRock Z370 Killer SLI AC 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

2
ASRock Z370 Killer SLI AC has 2 USB-C ports (including headers), which is more than 51.8% of motherboards and equal to 32.8% 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
ASRock Z370 Killer SLI AC has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
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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
ASRock Z370 Killer SLI AC 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.
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 I219-V
ASRock Z370 Killer SLI AC uses the Intel I219-V LAN controller, which is more advanced than that of 41% of motherboards and equal to that of 14.2% 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

1
ASRock Z370 Killer SLI AC has 1 RJ45 ports, which is equal to 85.6% 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
ASRock Z370 Killer SLI AC 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)
ASRock Z370 Killer SLI AC 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.
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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 ALC892
ASRock Z370 Killer SLI AC uses the Realtek ALC892 audio codec, which is less advanced than that of 80.1% of motherboards and equal to that of 8.5% 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
ASRock Z370 Killer SLI AC offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
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

95 dB
ASRock Z370 Killer SLI AC has an audio SNR of 95 dB, which is lower than that of 84.2% of motherboards and equal to that of 10.1% 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

no
ASRock Z370 Killer SLI AC does not support a headphone amp. 63% 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

6
ASRock Z370 Killer SLI AC has 6 3.5mm audio jacks, which is more than 86.6% of motherboards and equal to 13.4% of motherboards.
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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

10
ASRock Z370 Killer SLI AC has 10 VRM phases, which is fewer than 54.4% of motherboards and equal to 3.3% 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

1
ASRock Z370 Killer SLI AC has 1 CPU power connectors, which is equal to 54.5% 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

4
ASRock Z370 Killer SLI AC has 4 fan headers, which is fewer than 64.3% of motherboards and equal to 12.3% 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
ASRock Z370 Killer SLI AC 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

1.5 A
ASRock Z370 Killer SLI AC supports up to 1.5 A on the pump header, which is lower than that of 56.8% of motherboards and equal to that of 1.5% of motherboards.
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ASRock Z370 Killer SLI AC vs the average motherboard

  • Supports Wi-Fi
    ASRock Z370 Killer SLI AC supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support 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

    ASRock Z370 Killer SLI AC supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • 1 more USB 3.2 Gen1 USB-C ports
    ASRock Z370 Killer SLI AC has more USB 3.2 Gen1 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen1 USB-C port/s.
    What it is: The number of rear USB 3.2 Gen1 Type-C ports on the motherboard.
    When it matters: When you want more USB-C connectivity on the rear I/O.

    Importance: MEDIUM

    ASRock Z370 Killer SLI AC has more USB 3.2 Gen1 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen1 USB-C port/s.1 vs 0
  • 3 more PCIe x1 slots
    ASRock Z370 Killer SLI AC has more PCIe x1 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    What it is: The number of PCIe x1 slots on the motherboard.
    When it matters: When you want space for smaller add-in cards.

    Importance: MEDIUM

    Good value: >=2

    ASRock Z370 Killer SLI AC has more PCIe x1 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe x1 slot/s.4 vs 1
  • Supports Bluetooth
    ASRock Z370 Killer SLI AC supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
    What it is: Shows whether the motherboard includes built-in Bluetooth for wireless peripherals and accessories.
    When it matters: When you want to connect wireless peripherals without an adapter.

    Importance: LOW

    ASRock Z370 Killer SLI AC supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
  • 1 more USB4 or Thunderbolt headers
    ASRock Z370 Killer SLI AC has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
    supports Thunderbolt add-in card
    What it is: The number of internal USB4 or Thunderbolt headers on the motherboard.
    When it matters: When you plan to add high-speed front USB-C or Thunderbolt connections.

    Importance: MEDIUM

    ASRock Z370 Killer SLI AC has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.1 vs 0
  • 1 more USB 3.2 Gen1 ports
    ASRock Z370 Killer SLI AC has more USB 3.2 Gen1 ports than the average motherboard (5 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
    What it is: The number of rear USB 3.2 Gen1 Type-A ports on the motherboard.
    When it matters: When you want more standard USB ports with faster transfer speeds.

    Importance: MEDIUM

    Good value: >=4

    ASRock Z370 Killer SLI AC has more USB 3.2 Gen1 ports than the average motherboard (5 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.5 vs 4
  • 1 more DVI outputs
    ASRock Z370 Killer SLI AC has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.
    What it is: The number of DVI video outputs on the motherboard.
    When it matters: When you plan to use older compatible monitors.

    Importance: LOW

    ASRock Z370 Killer SLI AC has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.1 vs 0
  • 2 more SATA 3 connectors
    ASRock Z370 Killer SLI AC has more SATA 3 connectors than the average motherboard (6 vs 4). The average motherboard has 4 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

    ASRock Z370 Killer SLI AC has more SATA 3 connectors than the average motherboard (6 vs 4). The average motherboard has 4 SATA 3 connectors.6 vs 4
  • 2 more SATA 3 connectors
    ASRock Z370 Killer SLI AC has more SATA 3 connectors than the average motherboard (6 vs 4). The average motherboard has 4 SATA 3 connectors.
  • 3 more PCIe x1 slots
    ASRock Z370 Killer SLI AC has more PCIe x1 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe x1 slot/s.
  • 1 more USB 3.2 Gen1 USB-C ports
    ASRock Z370 Killer SLI AC has more USB 3.2 Gen1 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen1 USB-C port/s.
  • 1 more USB4 or Thunderbolt headers
    ASRock Z370 Killer SLI AC has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
  • 1 more DVI outputs
    ASRock Z370 Killer SLI AC has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.
  • 1 more USB 3.2 Gen1 ports
    ASRock Z370 Killer SLI AC has more USB 3.2 Gen1 ports than the average motherboard (5 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
  • 1 more total USB-C connections
    ASRock Z370 Killer SLI AC has more total USB-C connections than the average motherboard (2 vs 1). The average motherboard has 1 total USB-C connections.
  • Supports Wi-Fi
    ASRock Z370 Killer SLI AC supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • Supports Bluetooth
    ASRock Z370 Killer SLI AC supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
  • 1 more 3.5mm audio jacks
    ASRock Z370 Killer SLI AC has more 3.5mm audio jacks than the average motherboard (6 vs 5). The average motherboard has 5 3.5mm audio jacks.
  • 20 mm narrower
    ASRock Z370 Killer SLI AC is narrower than the average motherboard (224 mm vs 244 mm). The average motherboard width is 244 mm.

Total
Storage
Expansion
Ports & USB
Network
Audio
Power & Cooling
  • More basic motherboard chipset
    ASRock Z370 Killer SLI AC has more basic motherboard chipset than the average motherboard (Intel Z370 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No BIOS flashback support
    ASRock Z370 Killer SLI AC does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • No debug LED indicators
    ASRock Z370 Killer SLI AC does not have debug LED indicators, while the average motherboard does. 78.8% of motherboards include debug LED indicators.
  • Fewer BIOS update options
    ASRock Z370 Killer SLI AC has fewer BIOS update options than the average motherboard (UEFI utility, Windows app, DOS vs UEFI utility, flashback, Windows app). The average motherboard offers UEFI utility, flashback, Windows app BIOS update methods.
  • 4 older release date
    ASRock Z370 Killer SLI AC is older than the average motherboard (2,017 vs 2,021). The average motherboard was released in 2,021.
    September 2017
  • 50% less maximum memory capacity
    ASRock Z370 Killer SLI AC has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.
  • Slower M.2 slot interfaces
    ASRock Z370 Killer SLI AC has slower M.2 slot interfaces than the average motherboard (2x PCIe 3.0x4/SATA 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.
  • Less flexible PCIe lane configuration
    ASRock Z370 Killer SLI AC has less flexible PCIe lane configuration than the average motherboard (x16/x0, x8/x8 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
  • 2 fewer rear USB ports
    ASRock Z370 Killer SLI AC has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
  • 3 fewer total USB connections
    ASRock Z370 Killer SLI AC has fewer total USB connections than the average motherboard (12 vs 15). The average motherboard has 15 total USB connections.
  • 1 fewer USB 3.2 Gen2 ports
    ASRock Z370 Killer SLI AC has fewer USB 3.2 Gen2 ports than the average motherboard (0 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
  • 1 fewer DisplayPort outputs
    ASRock Z370 Killer SLI AC has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
  • Older HDMI version
    ASRock Z370 Killer SLI AC has older HDMI version than the average motherboard (1.4 vs 2.1). The average motherboard supports HDMI 2.1.
  • 2 fewer USB 2.0 ports
    ASRock Z370 Killer SLI AC has fewer USB 2.0 ports than the average motherboard (0 vs 2). The average motherboard has 2 USB 2.0 port/s.
  • 60% lower LAN speed
    ASRock Z370 Killer SLI AC 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.
  • Older Bluetooth version
    ASRock Z370 Killer SLI AC has older Bluetooth version than the average motherboard (4.2 vs 5.4). The average motherboard supports Bluetooth 5.4.
  • 20 dB lower audio SNR
    ASRock Z370 Killer SLI AC has a lower audio SNR than the average motherboard (95 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • More basic audio codec
    ASRock Z370 Killer SLI AC has more basic audio codec than the average motherboard (Realtek ALC892 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • No headphone amp support
    ASRock Z370 Killer SLI AC does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • 2 fewer ARGB headers
    ASRock Z370 Killer SLI AC has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.
  • 1 fewer fan headers
    ASRock Z370 Killer SLI AC has fewer fan headers than the average motherboard (4 vs 5). The average motherboard has 5 fan header/s.
  • More basic motherboard chipset
    ASRock Z370 Killer SLI AC has more basic motherboard chipset than the average motherboard (Intel Z370 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

    ASRock Z370 Killer SLI AC has more basic motherboard chipset than the average motherboard (Intel Z370 vs Intel B860). The average motherboard uses Intel B860 chipset.Intel Z370 vs Intel B860
  • 60% lower LAN speed
    ASRock Z370 Killer SLI AC 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.
    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

    ASRock Z370 Killer SLI AC 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
    ASRock Z370 Killer SLI AC has slower M.2 slot interfaces than the average motherboard (2x PCIe 3.0x4/SATA 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.
    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

    ASRock Z370 Killer SLI AC has slower M.2 slot interfaces than the average motherboard (2x PCIe 3.0x4/SATA 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.2x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • 2 fewer rear USB ports
    ASRock Z370 Killer SLI AC has fewer rear USB ports than the average motherboard (6 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

    ASRock Z370 Killer SLI AC has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.6 vs 8
  • 50% less maximum memory capacity
    ASRock Z370 Killer SLI AC has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    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

    ASRock Z370 Killer SLI AC has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.64 GB vs 128 GB
  • No BIOS flashback support
    ASRock Z370 Killer SLI AC does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    What it is: Shows whether the motherboard can update BIOS without needing a fully installed or supported CPU to boot first.
    When it matters: When you may need to update BIOS before the system can boot.

    Importance: MEDIUM

    ASRock Z370 Killer SLI AC does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • 3 fewer total USB connections
    ASRock Z370 Killer SLI AC has fewer total USB connections than the average motherboard (12 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

    ASRock Z370 Killer SLI AC has fewer total USB connections than the average motherboard (12 vs 15). The average motherboard has 15 total USB connections.12 vs 15
  • 20 dB lower audio SNR
    ASRock Z370 Killer SLI AC has a lower audio SNR than the average motherboard (95 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    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

    ASRock Z370 Killer SLI AC has a lower audio SNR than the average motherboard (95 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.95 dB vs 115 dB
Total
Overall
Platform & Features
Memory
Storage
Expansion
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

United States
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3.7
35 Reviews

(Reviews last updated: May 2026)

What customers like about ASRock Z370 Killer SLI AC?

  • Excellent value for a Z370 chipset motherboard, often cited as one of the most affordable options in its class
  • Comprehensive feature set including built-in 802.11ac Wi-Fi, Bluetooth 4.2, and dual M.2 slots
  • Robust physical build quality with 'Steel Slot' reinforced PCIe lanes to prevent damage from heavy graphics cards
  • User-friendly BIOS interface that simplifies navigation and basic configuration
  • Effective 10-phase digital power delivery for stable performance with 8th and 9th Gen Intel processors
  • Aesthetic appeal featuring a neutral black and gray design that fits most builds, complemented by subtle RGB lighting

What customers dislike about ASRock Z370 Killer SLI AC?

  • Subpar overclocking performance compared to higher-end boards; often requires higher voltages to achieve stable clocks
  • Lack of 'enthusiast' convenience features such as onboard power/reset buttons or diagnostic POST code LEDs
  • Difficulties obtaining official support or BIOS updates for specific OEM/custom versions of the board
  • Minor board layout quirks, such as the 3/4 ATX width which leaves the right edge unsupported by standard case standoffs
  • Onboard audio solution (Realtek ALC892) is considered basic compared to the higher-end ALC1220 found on slightly more expensive models

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