OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Motherboards Methodology v1.0
Motherboards Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo Motherboards Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
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MSI X299 SLI Plus Review | 107 Data compared

Avg. price:~£220CPU socket:LGA 2066Chipset:Intel X299Form factor:ATX

MSI X299 SLI Plus Review: Compare 107 technical specifications and user reviews to see how this product ranks in the Motherboards category and whether it is worth buying.

6.6

Overall score

Score
6.6/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 51% of models
Score components

90%

6.4

Technical score

10%

7.9

User score

â–²Better than 51% of motherboards
6.4

Technical score

Technical score
6.4/ 10
✕
What it is
An assessment of technical performance for products in the Motherboards category across these key areas: Platform & Features, Memory, Storage, Expansion, Ports & USB, Network, Audio, Power & Cooling.
When it matters
When you want to compare motherboards based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 50% of models
Score components

19%

6.9

Memory

16%

7.8

Platform & Features

16%

6.4

Storage

15%

3.6

Network

13%

7.3

Ports & USB

8%

5.2

Expansion

8%

6.0

Power & Cooling

5%

9.2

Audio

â–²Better than 50% of motherboards
7.9

User score

User score
7.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 67% of models
Score components

70%

8.0

User ratings

30%

7.5

Number of reviews

Based on 208 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–¼Worse than 67% of motherboards
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msi-x299-sli-plus

Best prices

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Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of motherboard MSI X299 SLI Plus

Technical score
Technical score
6.4/ 10
✕
What it is
An assessment of technical performance for products in the Motherboards category across these key areas: Platform & Features, Memory, Storage, Expansion, Ports & USB, Network, Audio, Power & Cooling.
When it matters
When you want to compare motherboards based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 50% of models
Score components:

19%

6.9

Memory

16%

7.8

Platform & Features

16%

6.4

Storage

15%

3.6

Network

13%

7.3

Ports & USB

8%

5.2

Expansion

8%

6.0

Power & Cooling

5%

9.2

Audio

6.4
User score
User score
7.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 67% of models
Score components

70%

8.0

User ratings

30%

7.5

Number of reviews

Based on 208 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
7.9
Popularity
Popularity
7.5/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 66% of models
Popularity:
MSI X299 SLI Plus has a popularity score of 7.5 points, which is higher than that of 66% of products in this category.
7.5
Value for money
Value for money
7.4/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 52% of models
Score components:

60%

6.6

Overall score

40%

9.4

Price

7.4
Brand name
MSI
CPU socket
LGA 2066
CPU socket
LGA 2066
â–² Better than 52% of models
This motherboard uses the LGA 2066 CPU socket, which is more advanced than that of 51.8% of motherboards and equal to that of 2% of motherboards.
CPU platform
Intel
CPU platform
Intel
â–² Better than 32% of models
This motherboard is built for the Intel CPU platform, which is more versatile than that of 31.6% of motherboards and equal to that of 68.4% of motherboards.
Chipset
Intel X299
Chipset
Intel X299
â–¼ Worse than 65% of models
This motherboard uses the Intel X299 chipset, which is less advanced than that of 65.3% of motherboards and equal to that of 2% of motherboards.
Form factor
ATX
Form factor
ATX
â–² Better than 48% of models
This motherboard 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.
Show more
DDR memory version
DDR4
DDR memory version
DDR4
â–¼ Worse than 36% of models
This motherboard uses DDR4 memory, which is newer than that of 13.5% of motherboards and equal to that of 50.8% of motherboards.
Memory slots
8
Memory slots
8
★ Better than 94% of models
Market range: <2 – >4
This motherboard has 8 Memory slots, which is more than 94% of motherboards and equal to 5.7% of motherboards.
Maximum memory capacity
128 GB
Maximum memory capacity
128 GB
â–² Better than 40% of models
Market range: <32 GB – >256 GB
This motherboard supports up to 128 GB of memory, which is more than 40.4% of motherboards and equal to 31.9% of motherboards.
Memory channels
4
Memory channels
4
★ Better than 93% of models
This motherboard supports 4 memory channels, which is more than 92.9% of motherboards and equal to 6.8% of motherboards.
some CPUs use only 2 channels
Maximum RAM speed
4,133 MT/s
Maximum RAM speed
4,133 MT/s
â–¼ Worse than 56% of models
Market range: <2k MT/s – >8k MT/s
This motherboard supports memory speeds up to 4,133 MT/s, which is lower than that of 55.8% of motherboards and equal to that of 1% of motherboards.
Show more
N. of M.2 sockets
2
N. of M.2 sockets
2
â–¼ Worse than 35% of models
Market range: <0 – >4
This motherboard has 2 M.2 sockets, which is more than 30.8% of motherboards and equal to 34.4% of motherboards.
M.2 slot interface per slot
2x PCIe 3.0 x4/SATA
M.2 slot interface per slot
2x PCIe 3.0 x4/SATA
â–¼ Worse than 68% of models
This motherboard offers 2x PCIe 3.0x4/SATA for M.2 slot interfaces, which is slower than that of 67.6% of motherboards and equal to that of 3.8% of motherboards.
N. of SATA 3 connectors
8
N. of SATA 3 connectors
8
â–² Better than 85% of models
Market range: <4 – >8
This motherboard has 8 SATA 3 connectors, which is more than 85.4% of motherboards and equal to 11.1% of motherboards.
Supported RAID levels
0/1/5/10
Supported RAID levels
0/1/5/10
â–² Better than 32% of models
This motherboard supports RAID levels 0/1/5/10, which is broader than 32% of motherboards and equal to 68% of motherboards.
NVMe RAID support
yes
NVMe RAID support
yes
â–² Better than 40% of models
This motherboard supports NVMe RAID. 40.3% of motherboards support this feature.
Intel VROC support
Show more
N. of PCIe 5.0 x16 slots
0
N. of PCIe 5.0 x16 slots
0
â–¼ Worse than 31% of models
Market range: <0 – >1
This motherboard has 0 PCIe 5.0x16 slots, which is fewer than 31.5% of motherboards and equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
0
N. of PCIe 4.0 x16 slots
0
â–¼ Worse than 45% of models
Market range: <0 – >1
This motherboard has 0 PCIe 4.0x16 slots, which is fewer than 44.5% of motherboards and equal to 55.5% of motherboards.
N. of PCIe 3.0 x16 slots
4
N. of PCIe 3.0 x16 slots
4
★ Better than 94% of models
Market range: <0 – >3
This motherboard has 4 PCIe 3.0x16 slots, which is more than 93.9% of motherboards and equal to 3.4% of motherboards.
PCIe slot electrical configuration
x16/x16/x8, x16/x8/x4, x8/x8/x0
PCIe slot electrical configuration
x16/x16/x8, x16/x8/x4, x8/x8/x0
★ Better than 96% of models
This motherboard uses x16/x16/x8, x16/x8/x4, x8/x8/x0 for PCIe slot electrical configuration, which is more flexible than that of 96.1% of motherboards.
Depends on CPU.
PCIe bifurcation support
yes
PCIe bifurcation support
yes
â–² Better than 40% of models
This motherboard supports PCIe bifurcation. 40.4% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
10
Total USB ports (rear I/O)
10
â–² Better than 75% of models
Market range: <6 – >10
This motherboard has 10 USB ports (rear I/O), which is more than 75.5% of motherboards and equal to 15.5% of motherboards.
Total USB ports (including headers)
19
Total USB ports (including headers)
19
â–² Better than 87% of models
Market range: <11 – >19
This motherboard has 19 USB ports (including headers), which is more than 87% of motherboards and equal to 4.2% of motherboards.
Total USB-C ports (rear I/O)
1
Total USB-C ports (rear I/O)
1
â–² Better than 35% of models
Market range: <0 – >2
This motherboard has 1 USB-C ports (rear I/O), which is more than 35.5% of motherboards and equal to 48.7% of motherboards.
Total USB-C ports (including headers)
2
Total USB-C ports (including headers)
2
â–² Better than 52% of models
Market range: <0 – >3
This motherboard has 2 USB-C ports (including headers), which is more than 51.7% of motherboards and equal to 32.9% of motherboards.
N. of USB 3.2 Gen2x2 ports (USB-C)
0
N. of USB 3.2 Gen2x2 ports (USB-C)
0
â–¼ Worse than 18% of models
Market range: <0 – >1
This motherboard has 0 USB 3.2 Gen2x2 ports (USB-C), which is fewer than 18.3% of motherboards and equal to 81.7% of motherboards.
Show more
LAN speed
1 Gbps
LAN speed
1 Gbps
â–¼ Worse than 51% of models
Market range: <1 Gbps – >2.5 Gbps
This motherboard supports LAN speeds up to 1 Gbps, which is lower than that of 50.8% of motherboards and equal to that of 49.2% of motherboards.
dual 1GbE ports
LAN controller
Intel I219-V
LAN controller
Intel I219-V
â–² Better than 58% of models
This motherboard uses the Intel I219-V LAN controller, which is more advanced than that of 58.2% of motherboards and equal to that of 10% of motherboards.
N. of RJ45 ports
2
N. of RJ45 ports
2
â–² Better than 86% of models
Market range: <1 – >2
This motherboard has 2 RJ45 ports, which is more than 85.7% of motherboards and equal to 13.4% of motherboards.
Wi-Fi connectivity
no
Wi-Fi connectivity
no
â–¼ Worse than 50% of models
This motherboard does not support Wi-Fi connectivity. 50.1% of motherboards support this feature.
Wi-Fi version
N/A
Show more
Audio codec
Realtek ALC1220
Audio codec
Realtek ALC1220
â–² Better than 65% of models
This motherboard uses the Realtek ALC1220 audio codec, which is more advanced than that of 65.3% of motherboards and equal to that of 12.9% of motherboards.
Audio channels
7.1
Audio channels
7.1
â–² Better than 5% of models
This motherboard offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
Audio SNR
120 dB
Audio SNR
120 dB
â–² Better than 56% of models
Market range: <95 dB – >120 dB
This motherboard has an audio SNR of 120 dB, which is higher than that of 56% of motherboards and equal to that of 40.5% of motherboards.
Headphone amp support
yes
Headphone amp support
yes
â–² Better than 41% of models
This motherboard supports a headphone amp. 40.8% of motherboards support this feature.
N. of 3.5mm audio jacks
5
N. of 3.5mm audio jacks
5
â–² Better than 50% of models
Market range: <2 – >6
This motherboard has 5 3.5mm audio jacks, which is more than 49.6% of motherboards and equal to 37% of motherboards.
Show more
VRM phases
9
VRM phases
9
â–¼ Worse than 63% of models
This motherboard has 9 VRM phases, which is fewer than 63.1% of motherboards and equal to 1.3% of motherboards.
N. of CPU power connectors
1
N. of CPU power connectors
1
â–¼ Worse than 45% of models
Market range: <1 – >2
This motherboard has 1 CPU power connectors, which is fewer than 45.5% of motherboards and equal to 54.5% of motherboards.
N. of fan headers
6
N. of fan headers
6
â–² Better than 50% of models
Market range: <3 – >8
This motherboard has 6 fan headers, which is more than 50% of motherboards and equal to 22.3% of motherboards.
Pump header
yes
Pump header
yes
â–² Better than 22% of models
This motherboard has a pump header. 21.9% of motherboards include this feature.
Pump header max current
2 A
Pump header max current
2 A
â–² Better than 45% of models
Market range: <0 A – >3 A
This motherboard supports up to 2 A on the pump header, which is higher than that of 45.4% of motherboards and equal to that of 32.4% of motherboards.
Show more

MSI X299 SLI Plus vs the average motherboard

246810TotalPlatform & FeaturesMemoryStorageExpansionPorts & USBNetworkAudioPower & Cooling
  • 4 more memory slots
    Memory slots
    8
    ★ Better than 94% of models
    Market range: <2 – >4
    This motherboard has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.
    8 vs 4
  • 2 more rear USB ports
    Total USB ports (rear I/O)
    10
    â–² Better than 75% of models
    Market range: <6 – >10
    This motherboard has more rear USB ports than the average motherboard (10 vs 8). The average motherboard has 8 rear USB port/s.
    10 vs 8
  • 4 more total USB connections
    Total USB ports (including headers)
    19
    â–² Better than 87% of models
    Market range: <11 – >19
    This motherboard has more total USB connections than the average motherboard (19 vs 15). The average motherboard has 15 total USB connections.
    19 vs 15
  • Newer CPU socket
    CPU socket
    LGA 2066
    â–² Better than 52% of models
    This motherboard has newer CPU socket than the average motherboard (LGA 2066 vs LGA 1151). The average motherboard uses LGA 1151 CPU socket.
    LGA 2,066 vs LGA 1,151
  • Includes POST code display
    POST code display
    yes
    â–² Better than 73% of models
    This motherboard has a POST code display, while the average motherboard does not. 27.2% of motherboards include a POST code display.
  • 1 more USB 3.2 Gen2 USB-C ports
    N. of USB 3.2 Gen2 ports (USB-C)
    1
    â–² Better than 65% of models
    Market range: <0 – >1
    This motherboard 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 vs 0
  • More advanced LAN controller
    LAN controller
    Intel I219-V
    â–² Better than 58% of models
    This motherboard has better LAN controller than the average motherboard (Intel I219-V vs Killer + Intel + Realtek). The average motherboard uses Killer + Intel + Realtek LAN controller.
    Intel I219-V vs Killer + Intel + Realtek
  • Includes dual BIOS
    Dual BIOS
    yes
    â–² Better than 77% of models
    This motherboard has dual BIOS, while the average motherboard does not. 23% of motherboards include dual BIOS.
  • Newer CPU socket
    CPU socket
    LGA 2066
    â–² Better than 52% of models
    This motherboard has newer CPU socket than the average motherboard (LGA 2066 vs LGA 1151). The average motherboard uses LGA 1151 CPU socket.
    LGA 2,066 vs LGA 1,151
  • Includes POST code display
    POST code display
    yes
    â–² Better than 73% of models
    This motherboard has a POST code display, while the average motherboard does not. 27.2% of motherboards include a POST code display.
  • Includes dual BIOS
    Dual BIOS
    yes
    â–² Better than 77% of models
    This motherboard has dual BIOS, while the average motherboard does not. 23% of motherboards include dual BIOS.
  • Rear-panel CMOS reset button
    Rear-panel CMOS reset button
    yes
    â–² Better than 73% of models
    This motherboard has a rear-panel CMOS reset button, while the average motherboard does not. 26.7% of motherboards include a rear-panel CMOS reset button.
  • Broader Windows support
    Supported Windows versions
    Windows 11, Windows 10, Windows 8.1, Windows 7
    ★ Better than 92% of models
    This motherboard has broader Windows support than the average motherboard (Windows 11, Windows 10, Windows 8.1, Windows 7 vs Windows 11, Windows 10). The average motherboard supports Windows 11, Windows 10.
    Windows 11, Windows 10, Windows 8.1, Windows 7 vs Windows 11, Windows 10
  • Includes onboard power button
    Onboard power button
    yes
    â–² Better than 72% of models
    This motherboard has an onboard power button, while the average motherboard does not. 27.7% of motherboards include an onboard power button.
  • 4 more memory slots
    Memory slots
    8
    ★ Better than 94% of models
    Market range: <2 – >4
    This motherboard has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.
    8 vs 4
  • More memory channels
    Memory channels
    4
    ★ Better than 93% of models
    This motherboard has more memory channels than the average motherboard (4 vs 2). The average motherboard has 2 memory channel/s.
    some CPUs use only 2 channels
    4 vs 2
  • 4 more SATA 3 connectors
    N. of SATA 3 connectors
    8
    â–² Better than 85% of models
    Market range: <4 – >8
    This motherboard has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.
    8 vs 4
  • More flexible PCIe lane configuration
    PCIe slot electrical configuration
    x16/x16/x8, x16/x8/x4, x8/x8/x0
    ★ Better than 96% of models
    This motherboard has more flexible PCIe lane configuration than the average motherboard (x16/x16/x8, x16/x8/x4, x8/x8/x0 vs x16/x0/x4, x8/x8/x4). The average motherboard uses x16/x0/x4, x8/x8/x4 PCIe slot lane configuration.
    Depends on CPU.
    x16/x16/x8, x16/x8/x4, x8/x8/x0 vs x16/x0/x4, x8/x8/x4
  • 1 more PCIe x1 slots
    N. of PCIe x1 slots
    2
    â–² Better than 56% of models
    Market range: <0 – >3
    This motherboard has more PCIe x1 slots than the average motherboard (2 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    2 vs 1
  • 3 more PCIe 3.0x16 slots
    N. of PCIe 3.0 x16 slots
    4
    ★ Better than 94% of models
    Market range: <0 – >3
    This motherboard has more PCIe 3.0x16 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
    4 vs 1
  • 2 more rear USB ports
    Total USB ports (rear I/O)
    10
    â–² Better than 75% of models
    Market range: <6 – >10
    This motherboard has more rear USB ports than the average motherboard (10 vs 8). The average motherboard has 8 rear USB port/s.
    10 vs 8
  • 4 more total USB connections
    Total USB ports (including headers)
    19
    â–² Better than 87% of models
    Market range: <11 – >19
    This motherboard has more total USB connections than the average motherboard (19 vs 15). The average motherboard has 15 total USB connections.
    19 vs 15
  • 1 more USB 3.2 Gen2 USB-C ports
    N. of USB 3.2 Gen2 ports (USB-C)
    1
    â–² Better than 65% of models
    Market range: <0 – >1
    This motherboard 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 vs 0
  • 1 more USB 3.2 Gen1 headers
    N. of USB 3.2 Gen1 headers (USB-A)
    2
    â–² Better than 68% of models
    Market range: <1 – >2
    This motherboard 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.
    two internal headers
    2 vs 1
  • 1 more USB4 or Thunderbolt headers
    N. of USB4 / Thunderbolt headers (USB-C)
    1
    â–² Better than 66% of models
    Market range: <0 – >1
    This motherboard has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
    JTBT1 header
    1 vs 0
  • 1 more USB 3.2 Gen2 headers
    N. of USB 3.2 Gen2 headers (USB-C)
    1
    â–² Better than 61% of models
    Market range: <0 – >1
    This motherboard has more USB 3.2 Gen2 headers than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2 header/s.
    1 vs 0
  • 1 more total USB-C connections
    Total USB-C ports (including headers)
    2
    â–² Better than 52% of models
    Market range: <0 – >3
    This motherboard has more total USB-C connections than the average motherboard (2 vs 1). The average motherboard has 1 total USB-C connections.
    2 vs 1
  • 2 more USB 2.0 ports
    N. of USB 2.0 ports
    4
    â–² Better than 66% of models
    Market range: <0 – >4
    This motherboard has more USB 2.0 ports than the average motherboard (4 vs 2). The average motherboard has 2 USB 2.0 port/s.
    4 vs 2
  • More advanced LAN controller
    LAN controller
    Intel I219-V
    â–² Better than 58% of models
    This motherboard has better LAN controller than the average motherboard (Intel I219-V vs Killer + Intel + Realtek). The average motherboard uses Killer + Intel + Realtek LAN controller.
    Intel I219-V vs Killer + Intel + Realtek
  • Better audio codec
    Audio codec
    Realtek ALC1220
    â–² Better than 65% of models
    This motherboard has better audio codec than the average motherboard (Realtek ALC1220 vs Realtek ALC897). The average motherboard uses Realtek ALC897 audio codec.
    Realtek ALC1220 vs Realtek ALC897
  • 5 dB higher audio SNR
    Audio SNR
    120 dB
    â–² Better than 56% of models
    Market range: <95 dB – >120 dB
    This motherboard has a higher audio SNR than the average motherboard (120 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    120 dB vs 115 dB
  • More basic motherboard chipset
    Chipset
    Intel X299
    â–¼ Worse than 65% of models
    This motherboard has more basic motherboard chipset than the average motherboard (Intel X299 vs Intel B860). The average motherboard uses Intel B860 chipset.
    Intel X299 vs Intel B860
  • 60% lower LAN speed
    LAN speed
    1 Gbps
    â–¼ Worse than 51% of models
    Market range: <1 Gbps – >2.5 Gbps
    This motherboard 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
    1 Gbps vs 2.5 Gbps
  • Slower M.2 slot interfaces
    M.2 slot interface per slot
    2x PCIe 3.0 x4/SATA
    â–¼ Worse than 68% of models
    This motherboard has slower M.2 slot interfaces than the average motherboard (2x PCIe 3x4/SATA vs 1x PCIe 5x4, 2x PCIe 4x4). 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
  • No Wi-Fi connectivity
    Wi-Fi connectivity
    no
    â–¼ Worse than 50% of models
    This motherboard does not support Wi-Fi connectivity, while the average motherboard does. 50% of motherboards support Wi-Fi connectivity.
  • No Wi-Fi antenna included
    Wi-Fi antenna included
    no
    â–¼ Worse than 51% of models
    This motherboard does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • No integrated graphics support
    Integrated graphics support
    no
    â–¼ Worse than 89% of models
    This motherboard does not support integrated graphics, while the average motherboard does. 89.5% of motherboards support integrated graphics.
  • 2 fewer ARGB headers
    N. of ARGB headers (3-pin)
    0
    â–¼ Worse than 62% of models
    Market range: <0 – >3
    This motherboard has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.
    0 vs 2
  • 1 fewer DisplayPort outputs
    N. of DisplayPort outputs
    0
    â–¼ Worse than 54% of models
    Market range: <0 – >1
    This motherboard has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
    no onboard video outputs
    0 vs 1
  • 37.5% more expensive
    MSI X299 SLI Plus is more expensive than the average motherboard (£220 vs £160).
    £220 vs £160
  • More basic motherboard chipset
    Chipset
    Intel X299
    â–¼ Worse than 65% of models
    This motherboard has more basic motherboard chipset than the average motherboard (Intel X299 vs Intel B860). The average motherboard uses Intel B860 chipset.
    Intel X299 vs Intel B860
  • No integrated graphics support
    Integrated graphics support
    no
    â–¼ Worse than 89% of models
    This motherboard does not support integrated graphics, while the average motherboard does. 89.5% of motherboards support integrated graphics.
  • Fewer useful accessories
    Included accessories
    2x SATA cables, I/O shield, GPU bridge
    â–² Better than 51% of models
    This motherboard has fewer useful accessories than the average motherboard (2x SATA cables, I/O shield, GPU bridge vs 2x SATA cables, Wi-Fi antenna, M.2 kit, front-panel adapter, RGB cable). The average motherboard comes with 2x SATA cables, Wi-Fi antenna, M.2 kit, front-panel adapter, RGB cable.
    2x SATA cables, I/O shield, GPU bridge vs 2x SATA cables, Wi-Fi antenna, M.2 kit, front-panel adapter, RGB cable
  • 4 older release date
    Release date
    2017
    â–¼ Worse than 72% of models
    Market range: <2k – >2k
    This motherboard is older than the average motherboard (2017 vs 2021). The average motherboard was released in 2021.
    June 2017
    2017 vs 2021
  • 12.7% lower maximum RAM speed
    Maximum RAM speed
    4,133 MT/s
    â–¼ Worse than 56% of models
    Market range: <2k MT/s – >8k MT/s
    This motherboard has a lower maximum RAM speed than the average motherboard (4133 MT/s vs 4733 MT/s). The average motherboard supports RAM speed of 4733 MT/s.
    4,133 MT/s vs 4,733 MT/s
  • Slower M.2 slot interfaces
    M.2 slot interface per slot
    2x PCIe 3.0 x4/SATA
    â–¼ Worse than 68% of models
    This motherboard has slower M.2 slot interfaces than the average motherboard (2x PCIe 3x4/SATA vs 1x PCIe 5x4, 2x PCIe 4x4). 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
  • 1 fewer U.2 sockets
    N. of U.2 sockets
    1
    ★ Better than 97% of models
    Market range: <0 – >2
    This motherboard has fewer U.2 sockets than the average motherboard (1 vs 0). The average motherboard has 0 U.2 socket/s.
    1 vs 0
  • 1 fewer DisplayPort outputs
    N. of DisplayPort outputs
    0
    â–¼ Worse than 54% of models
    Market range: <0 – >1
    This motherboard has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
    no onboard video outputs
    0 vs 1
  • 1 fewer HDMI outputs
    N. of HDMI outputs
    0
    â–¼ Worse than 86% of models
    Market range: <0 – >1
    This motherboard has fewer HDMI outputs than the average motherboard (0 vs 1). The average motherboard has 1 HDMI outputs.
    0 vs 1
  • 60% lower LAN speed
    LAN speed
    1 Gbps
    â–¼ Worse than 51% of models
    Market range: <1 Gbps – >2.5 Gbps
    This motherboard 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
    1 Gbps vs 2.5 Gbps
  • No Wi-Fi connectivity
    Wi-Fi connectivity
    no
    â–¼ Worse than 50% of models
    This motherboard does not support Wi-Fi connectivity, while the average motherboard does. 50% of motherboards support Wi-Fi connectivity.
  • No Wi-Fi antenna included
    Wi-Fi antenna included
    no
    â–¼ Worse than 51% of models
    This motherboard does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • 1 fewer RJ45 ports
    N. of RJ45 ports
    2
    â–² Better than 86% of models
    Market range: <1 – >2
    This motherboard has fewer RJ45 ports than the average motherboard (2 vs 1). The average motherboard has 1 RJ45 port/s.
    2 vs 1
  • 2 fewer ARGB headers
    N. of ARGB headers (3-pin)
    0
    â–¼ Worse than 62% of models
    Market range: <0 – >3
    This motherboard 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
    VRM phases
    9
    â–¼ Worse than 63% of models
    This motherboard has fewer VRM phases than the average motherboard (9 vs 10). The average motherboard has 10 VRM phase/s.
    9 vs 10

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Third-party reviews

Based on 208 buyer reviews from online shops.
Reviews last updated: May 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about MSI X299 SLI Plus

  • Excellent value for the X299 platform with a competitive price point
  • Clean, professional 'all-black' aesthetic suitable for both workstations and gaming builds
  • Extensive storage options including dual M.2 slots and a U.2 connector
  • Generous I/O connectivity with a high number of USB 3.1 Type-A and Type-C ports
  • User-friendly BIOS (Click BIOS 5) with helpful troubleshooting features like 'Board Explorer'
  • Includes physical power, reset, and CMOS clear buttons directly on the board
  • Robust fan control suite with multiple 4-pin PWM headers and dedicated pump support

What we don't like about MSI X299 SLI Plus

  • Lacks integrated Wi-Fi and Bluetooth modules
  • Stock power consumption is notably higher than some competitors due to default 'enhanced turbo' settings
  • Onboard RGB lighting is relatively subtle and can be easily blocked by large graphics cards
  • VRM cooling may be insufficient for extreme overclocking with high-core-count CPUs
  • Minimalist accessory package with only two SATA cables included
  • Some users reported long boot times and potential cold-boot stability issues on early BIOS versions

Verdict

The MSI X299 SLI PLUS is an ATX motherboard built on the Intel X299 chipset and LGA 2066 socket, designed for high-end desktop (HEDT) Intel Core X-series processors. It features eight DDR4 DIMM slots supporting quad-channel memory up to 128GB (or 256GB with specific CPUs) at overclocked speeds of 4133MHz+, four PCIe 3.0 x16 slots with Steel Armor for multi-GPU SLI/Crossfire setups, and diverse storage options including dual M.2 slots, a U.2 port, and eight SATA 6Gb/s connectors. Its main strengths lie in professional-grade reliability with Military Class 6 components, dual Intel Gigabit LAN for stable networking, and a convenient set of enthusiast tools like onboard power/reset buttons, a debug LED, and a BIOS Flashback+ button. However, notable drawbacks include the lack of built-in Wi-Fi, some awkward placement of certain headers, and the fact that one M.2 slot is often obstructed once a large graphics card is installed.

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