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ASUS Prime B860M A Review | 107 Data compared

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  • Avg. price in UK: ~£130
  • Avg. price in US: ~$170
  • CPU socket: LGA 1851
  • Chipset: Intel B860
  • Form factor: microATX

ASUS Prime B860M A review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

7.6

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%

7.6

Technical Score

10.0%

6.9

User score

Very good
7.6

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%

9.8

Memory

16.0%

8.3

Platform & Features

16.0%

6.6

Storage

15.0%

9.4

Network

13.0%

4.7

Ports & USB

8.0%

5.8

Expansion

8.0%

6.7

Power & Cooling

5.0%

7.1

Audio

Very good
6.9

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%

8.5

User reviews

30.0%

3.2

Popularity

User score:
United Kingdom
amazon
4.1
(19)
amazon
4.5
(13)
United States
Amazon_logo.png
4.1
(19)
Amazon_logo.png
4.5
(13)

(Reviews last updated: May 2026)

Good
  • 7.8
    Gaming

    Score components:

    28.0%

    5.8

    VRM phases

    22.0%

    5.5

    N. of M.2 sockets

    18.0%

    10

    LAN speed

    17.0%

    10

    Maximum RAM speed

    15.0%

    10

    N. of PCIe 5.0 x16 slots

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Best prices in UK

Best rankings

?

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

Verdict

The ASUS PRIME B860M-A is a micro-ATX motherboard designed for Intel Core Ultra Processors (Series 2) on the LGA1851 socket, featuring a robust 7+1+1+1 80A DrMOS power stage design and a 6-layer PCB for enhanced stability. It supports up to 256GB of dual-channel DDR5 memory with overclocking speeds exceeding 8666+ MT/s via AEMP III profiles. Connectivity is a major strength, headlined by a PCIe 5.0 x16 Safeslot for graphics, two M.2 slots (one PCIe 5.0 and one PCIe 4.0), and a versatile rear I/O including a 20Gbps USB Type-C port, dual DisplayPort, and HDMI 2.1. Main pros include its 'Advanced AI PC-ready' design, high-speed 2.5Gb Ethernet, and DIY-friendly features like a pre-mounted I/O shield and Q-LED Core troubleshooting. However, potential cons include a limited number of expansion slots due to the compact mATX form factor and the lack of built-in Wi-Fi on this specific non-WIFI variant.

Technical Specifications of ASUS Prime B860M A

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%

9.8

Memory

16.0%

8.3

Platform & Features

16.0%

6.6

Storage

15.0%

9.4

Network

13.0%

4.7

Ports & USB

8.0%

5.8

Expansion

8.0%

6.7

Power & Cooling

5.0%

7.1

Audio

7.6
ASUS Prime B860M A has a technical score of 7.63 points, which is higher than that of 74.5% 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%

8.5

User reviews

30.0%

3.2

Popularity

User score:
United Kingdom
amazon
4.1
(19)
amazon
4.5
(13)
United States
Amazon_logo.png
4.1
(19)
Amazon_logo.png
4.5
(13)

(Reviews last updated: May 2026)

6.9
ASUS Prime B860M A has a user score of 6.93 points, which is lower than that of 80% 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.
3.2
ASUS Prime B860M A has a popularity of 3.2 points, which is lower than 57.9% 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%

7.6

Overall score

40.0%

9.8

Price

8.2
ASUS Prime B860M A has a quality-to-price ratio of 8.2 points, which is higher than 76.3% 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 1851
ASUS Prime B860M A uses the LGA 1851 CPU socket, which is more advanced than that of 77.7% of motherboards and equal to that of 8.1% 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 B860
ASUS Prime B860M A uses the Intel B860 chipset, which is more advanced than that of 85.7% of motherboards and equal to that of 3.4% 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

microATX
ASUS Prime B860M A has the microATX form factor, which is less versatile than that of 52.2% of motherboards and equal to that of 32.4% of motherboards.
Show more
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

DDR5
ASUS Prime B860M A uses DDR5 memory, which is newer than that of 64.7% of motherboards and equal to that of 35.3% 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
ASUS Prime B860M A 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

256 GB
ASUS Prime B860M A supports up to 256 GB of memory, which is more than 82.8% of motherboards and equal to 16.5% 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
ASUS Prime B860M A 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

8,666 MT/s
ASUS Prime B860M A supports memory speeds up to 8666 MT/s, which is higher than that of 94.4% of motherboards and equal to that of 0.5% of motherboards.
Show more
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
ASUS Prime B860M A 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

1x PCIe 5.0 x4, 1x PCIe 4.0 x4
ASUS Prime B860M A offers 1x PCIe 5.0x4, 1x PCIe 4.0x4 for M.2 slot interfaces, which is faster than that of 80.1% of motherboards and equal to that of 2.8% 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

4
ASUS Prime B860M A has 4 SATA 3 connectors, which is more than 5.6% of motherboards and equal to 46.3% 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 Prime B860M A 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

yes
ASUS Prime B860M A 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

1
ASUS Prime B860M A has 1 PCIe 5.0x16 slots, which is more than 68.6% of motherboards and equal to 26.6% 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

1
ASUS Prime B860M A has 1 PCIe 4.0x16 slots, which is more than 55.6% of motherboards and equal to 35.3% 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

0
ASUS Prime B860M A has 0 PCIe 3.0x16 slots, which is fewer than 59.5% of motherboards and equal to 40.5% of motherboards.
runs at x4 mode
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/x4/x1
ASUS Prime B860M A uses x16/x4/x1 for PCIe slot electrical configuration, which is more flexible than that of 71.6% of motherboards and equal to that of 7.5% 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
ASUS Prime B860M A 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

8
ASUS Prime B860M A has 8 USB ports (rear I/O), which is more than 40.3% of motherboards and equal to 30.7% 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

13
ASUS Prime B860M A has 13 USB ports (including headers), which is fewer than 64.7% of motherboards and equal to 7.6% 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
ASUS Prime B860M A 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
ASUS Prime B860M A 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

1
ASUS Prime B860M A has 1 USB 3.2 Gen2x2 ports (USB-C), which is more than 81.7% of motherboards and equal to 18.1% 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

2.5 Gbps
ASUS Prime B860M A supports LAN speeds up to 2.5 Gbps, which is higher than that of 49.2% of motherboards and equal to that of 41.5% of motherboards.
also includes 1GbE secondary port
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

?
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
ASUS Prime B860M A 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
ASUS Prime B860M A supports Wi-Fi connectivity. 50.9% of motherboards support this feature.
Wi-Fi 6E.
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 6E (802.11ax)
ASUS Prime B860M A supports Wi-Fi 6E (802.11ax), which is newer than that of 72.1% of motherboards and equal to that of 16.6% 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 ALC897
ASUS Prime B860M A uses the Realtek ALC897 audio codec, which is less advanced than that of 50.8% of motherboards and equal to that of 29.3% 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 Prime B860M A 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

?
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
ASUS Prime B860M A 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

3
ASUS Prime B860M A has 3 3.5mm audio jacks, which is fewer than 50.3% of motherboards and equal to 38.2% 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

7+1+1+1
ASUS Prime B860M A has 7+1+1+1 VRM phases, which is fewer than 63.7% 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
ASUS Prime B860M A 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

5
ASUS Prime B860M A has 5 fan headers, which is more than 35.8% of motherboards and equal to 14.5% 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 Prime B860M A 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

?
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ASUS Prime B860M A vs the average motherboard

  • 2x more maximum memory capacity
    ASUS Prime B860M A has more maximum memory capacity than the average motherboard (256 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

    ASUS Prime B860M A has more maximum memory capacity than the average motherboard (256 GB vs 128 GB). The average motherboard supports 128 GB of memory.256 GB vs 128 GB
  • Newer CPU socket
    ASUS Prime B860M A has newer CPU socket than the average motherboard (LGA 1,851 vs LGA 1,151). The average motherboard uses LGA 1,151 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

    ASUS Prime B860M A has newer CPU socket than the average motherboard (LGA 1,851 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.LGA 1851 vs LGA 1151
  • Newer DDR memory generation
    ASUS Prime B860M A has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.
    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

    ASUS Prime B860M A has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.DDR5 vs DDR4
  • 1 more PCIe 5.0x16 slots
    ASUS Prime B860M A has more PCIe 5.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 5.0x16 slot/s.
    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

    ASUS Prime B860M A has more PCIe 5.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 5.0x16 slot/s.1 vs 0
  • 1 more USB 3.2 Gen2x2 USB-C ports
    ASUS Prime B860M A has more USB 3.2 Gen2x2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2x2 USB-C port/s.
    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

    ASUS Prime B860M A has more USB 3.2 Gen2x2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2x2 USB-C port/s.1 vs 0
  • Integrated I/O shield
    ASUS Prime B860M A has an integrated I/O shield, while the average motherboard does not. 46.1% of motherboards include an integrated I/O shield.
    Pre-installed I/O shield.
    What it is: Shows whether the rear I/O shield comes pre-mounted on the motherboard instead of being installed separately.
    When it matters: When you want an easier motherboard installation process.

    Importance: LOW

    ASUS Prime B860M A has an integrated I/O shield, while the average motherboard does not. 46.1% of motherboards include an integrated I/O shield.
  • 88.4% higher maximum RAM speed
    ASUS Prime B860M A has a higher maximum RAM speed than the average motherboard (8,666 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
    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

    ASUS Prime B860M A has a higher maximum RAM speed than the average motherboard (8,666 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.8666 MT/s vs 4600 MT/s
  • 1 more PCIe 4.0x16 slots
    ASUS Prime B860M A has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    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

    ASUS Prime B860M A has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.1 vs 0
  • Newer CPU socket
    ASUS Prime B860M A has newer CPU socket than the average motherboard (LGA 1,851 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • Integrated I/O shield
    ASUS Prime B860M A has an integrated I/O shield, while the average motherboard does not. 46.1% of motherboards include an integrated I/O shield.
  • 4 years newer release date
    ASUS Prime B860M A has a newer release date than the average motherboard (2,025 vs 2,021). The average motherboard was released in 2,021.
  • 2x more maximum memory capacity
    ASUS Prime B860M A has more maximum memory capacity than the average motherboard (256 GB vs 128 GB). The average motherboard supports 128 GB of memory.
  • Newer DDR memory generation
    ASUS Prime B860M A has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.
  • 88.4% higher maximum RAM speed
    ASUS Prime B860M A has a higher maximum RAM speed than the average motherboard (8,666 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • 75.7% higher overclocked RAM speed
    ASUS Prime B860M A has a higher overclocked RAM speed than the average motherboard (8,666 MT/s vs 4,933 MT/s). The average motherboard supports overclocked RAM speed of 4,933 MT/s.
  • 1 more PCIe 5.0x16 slots
    ASUS Prime B860M A has more PCIe 5.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 5.0x16 slot/s.
  • 1 more PCIe 4.0x16 slots
    ASUS Prime B860M A has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
  • More flexible PCIe lane configuration
    ASUS Prime B860M A has more flexible PCIe lane configuration than the average motherboard (x16/x4/x1 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
  • 1 more USB 3.2 Gen2x2 USB-C ports
    ASUS Prime B860M A has more USB 3.2 Gen2x2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2x2 USB-C port/s.
  • 1 more USB4 or Thunderbolt headers
    ASUS Prime B860M A 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 USB 3.2 Gen2 headers
    ASUS Prime B860M A 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 more total USB-C connections
    ASUS Prime B860M A has more total USB-C connections than the average motherboard (2 vs 1). The average motherboard has 1 total USB-C connections.
  • 1 more DisplayPort outputs
    ASUS Prime B860M A has more DisplayPort outputs than the average motherboard (2 vs 1). The average motherboard has 1 DisplayPort outputs.
  • 2 more USB 2.0 ports
    ASUS Prime B860M A has more USB 2.0 ports than the average motherboard (4 vs 2). The average motherboard has 2 USB 2.0 port/s.
  • Supports Wi-Fi
    ASUS Prime B860M A supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • 1 more ARGB headers
    ASUS Prime B860M A has more ARGB headers than the average motherboard (3 vs 2). The average motherboard has 2 ARGB header/s.
  • 61 mm shorter
    ASUS Prime B860M A is shorter than the average motherboard (244 mm vs 305 mm). The average motherboard height is 305 mm.

Total
Platform & Features
Memory
Expansion
Ports & USB
Network
Power & Cooling
  • No BIOS flashback support
    ASUS Prime B860M A does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    requires CPU/RAM
  • Less versatile form factor
    ASUS Prime B860M A has less versatile form factor than the average motherboard (microATX vs ATX). The average motherboard comes in ATX form factor.
  • Slower M.2 slot interfaces
    ASUS Prime B860M A has slower M.2 slot interfaces than the average motherboard (1x PCIe 5.0x4, 1x PCIe 4.0x4 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.
  • No multi-GPU support
    ASUS Prime B860M A does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
  • 1 fewer PCIe 3.0x16 slots
    ASUS Prime B860M A has fewer PCIe 3.0x16 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
    runs at x4 mode
  • 2 fewer USB 3.2 Gen1 ports
    ASUS Prime B860M A has fewer USB 3.2 Gen1 ports than the average motherboard (2 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
  • 2 fewer total USB connections
    ASUS Prime B860M A has fewer total USB connections than the average motherboard (13 vs 15). The average motherboard has 15 total USB connections.
  • 1 fewer USB 2.0 headers
    ASUS Prime B860M A has fewer USB 2.0 headers than the average motherboard (1 vs 2). The average motherboard has 2 USB 2.0 header/s.
  • 1 fewer PS/2 ports
    ASUS Prime B860M A has fewer PS/2 ports than the average motherboard (0 vs 1). The average motherboard has 1 PS/2 port/s.
  • No headphone amp support
    ASUS Prime B860M A does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • More basic audio codec
    ASUS Prime B860M A has more basic audio codec than the average motherboard (Realtek ALC897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • 2 fewer 3.5mm audio jacks
    ASUS Prime B860M A has fewer 3.5mm audio jacks than the average motherboard (3 vs 5). The average motherboard has 5 3.5mm audio jacks.
  • No optical S/PDIF out
    ASUS Prime B860M A does not have optical S/PDIF out, while the average motherboard does. 55.7% of motherboards include optical S/PDIF out.
  • Fewer VRM phases
    ASUS Prime B860M A has fewer VRM phases than the average motherboard (7+1+1+1 vs 10). The average motherboard has 10 VRM phase/s.
  • No BIOS flashback support
    ASUS Prime B860M A does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    requires CPU/RAM
    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

    ASUS Prime B860M A does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • No multi-GPU support
    ASUS Prime B860M A does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
    What it is: Shows whether the board can run more than one graphics card in a supported multi-GPU configuration.
    When it matters: When you plan to run more than one graphics card.

    Importance: LOW

    ASUS Prime B860M A does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
  • 2 fewer USB 3.2 Gen1 ports
    ASUS Prime B860M A has fewer USB 3.2 Gen1 ports than the average motherboard (2 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

    ASUS Prime B860M A has fewer USB 3.2 Gen1 ports than the average motherboard (2 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.2 vs 4
  • No headphone amp support
    ASUS Prime B860M A does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
    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

    ASUS Prime B860M A does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • 2 fewer total USB connections
    ASUS Prime B860M A has fewer total USB connections than the average motherboard (13 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 Prime B860M A has fewer total USB connections than the average motherboard (13 vs 15). The average motherboard has 15 total USB connections.13 vs 15
  • More basic audio codec
    ASUS Prime B860M A has more basic audio codec than the average motherboard (Realtek ALC897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 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

    ASUS Prime B860M A has more basic audio codec than the average motherboard (Realtek ALC897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.Realtek ALC897 vs Realtek ALC898
  • 1 fewer USB 2.0 headers
    ASUS Prime B860M A has fewer USB 2.0 headers than the average motherboard (1 vs 2). The average motherboard has 2 USB 2.0 header/s.
    What it is: The number of internal USB 2.0 headers available for case connections.
    When it matters: When your case or accessories need internal USB connections.

    Importance: LOW

    ASUS Prime B860M A has fewer USB 2.0 headers than the average motherboard (1 vs 2). The average motherboard has 2 USB 2.0 header/s.1 vs 2
  • 2 fewer 3.5mm audio jacks
    ASUS Prime B860M A has fewer 3.5mm audio jacks than the average motherboard (3 vs 5). The average motherboard has 5 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

    ASUS Prime B860M A has fewer 3.5mm audio jacks than the average motherboard (3 vs 5). The average motherboard has 5 3.5mm audio jacks.3 vs 5
Total
Overall
Platform & Features
Storage
Expansion
Ports & USB
Audio
Power & Cooling

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Third-party reviews

United Kingdom
amazon
4.1
19 Reviews
amazon
4.5
13 Reviews
United States
Amazon_logo.png
4.1
19 Reviews
Amazon_logo.png
4.5
13 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS Prime B860M A?

  • Excellent value for budget-conscious builds using modern Intel Core Ultra processors
  • Strong audio features including 7.1 surround sound support and dedicated audio PCB layers
  • User-friendly BIOS with simplified and advanced modes suitable for all experience levels
  • Comprehensive connectivity featuring PCIe 5.0 support, multiple M.2 slots, and WiFi 6E
  • Efficient cooling design with multiple heatsinks and Fan Xpert 2+ software for thermal management
  • DIY-friendly innovations such as the pre-installed I/O shield and Q-LED Core for easier troubleshooting

What customers dislike about ASUS Prime B860M A?

  • No support for CPU overclocking due to the limitations of the Intel B860 chipset
  • Reports of Armoury Crate utility being less useful or intuitive than previous versions
  • Occasional reports of 'no post' or failure to detect specific modern graphics cards like the RTX 5070 in some units
  • Highly limited printed documentation, requiring users to download the full manual from the manufacturer's site
  • The primary M.2 SSD heatsink may struggle to keep PCIe 5.0 drives from thermal throttling under heavy workloads

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