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ASUS Prime B650M A II Review | 107 Data compared

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  • Avg. price: ~£110
  • CPU socket: AM5
  • Chipset: AMD B650
  • Form factor: microATX

ASUS Prime B650M A II review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

7.1

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%

7.0

Technical Score

10.0%

8.1

User score

Very good
7.0

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%

9.0

Memory

16.0%

8.0

Platform & Features

16.0%

6.5

Storage

15.0%

8.2

Network

13.0%

4.8

Ports & USB

8.0%

3.6

Expansion

8.0%

6.3

Power & Cooling

5.0%

7.1

Audio

Very good
8.1

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%

8.6

User reviews

30.0%

7.0

Popularity

User score:
United Kingdom
amazon
4.4
(132)
amazon
4.1
(27)
United States
Amazon_logo.png
4.4
(130)
Amazon_logo.png
3.9
(29)

(Reviews last updated: May 2026)

Excellent
  • 6.4
    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%

    9.4

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

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Best prices in UK

Best rankings

?

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

Verdict

The ASUS Prime B650M-A II is a versatile micro-ATX motherboard designed for the AMD AM5 socket, supporting Ryzen 9000, 8000, and 7000 series processors. Key specifications include four DDR5 DIMM slots supporting up to 192GB at 7600+MHz (OC), a PCIe 5.0 M.2 slot for ultra-fast storage alongside a secondary PCIe 4.0 M.2 slot, and 2.5Gb Ethernet for high-speed networking. Its robust power design and comprehensive cooling—featuring VRM and PCH heatsinks with Fan Xpert 2+—make it a strong choice for stable performance and energy efficiency. Main pros include its future-ready PCIe 5.0 support, excellent memory overclocking via OptiMem II, and a wide array of connectivity options like USB 3.2 Gen 2 and BIOS FlashBack. However, some users have reported relatively long POST times during initial boots and a lack of built-in M.2 heatsinks for secondary slots.

Technical Specifications of ASUS Prime B650M A II

Technical Score

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

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

Score components:

19.0%

9.0

Memory

16.0%

8.0

Platform & Features

16.0%

6.5

Storage

15.0%

8.2

Network

13.0%

4.8

Ports & USB

8.0%

3.6

Expansion

8.0%

6.3

Power & Cooling

5.0%

7.1

Audio

7.0
ASUS Prime B650M A II has a technical score of 7.04 points, which is higher than that of 64.1% 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%

8.6

User reviews

30.0%

7.0

Popularity

User score:
United Kingdom
amazon
4.4
(132)
amazon
4.1
(27)
United States
Amazon_logo.png
4.4
(130)
Amazon_logo.png
3.9
(29)

(Reviews last updated: May 2026)

8.1
ASUS Prime B650M A II has a user score of 8.1 points, which is higher than that of 69.4% 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.
7.0
ASUS Prime B650M A II has a popularity of 7 points, which is higher than 69.1% 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%

7.1

Overall score

40.0%

9.9

Price

8.0
ASUS Prime B650M A II has a quality-to-price ratio of 8 points, which is higher than 71.3% 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

AM5
ASUS Prime B650M A II uses the AM5 CPU socket, which is more advanced than that of 85.8% of motherboards and equal to that of 14.2% of motherboards.
CPU platform

Importance: MEDIUM

AMD
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

AMD B650
ASUS Prime B650M A II uses the AMD B650 chipset, which is more advanced than that of 72.5% of motherboards and equal to that of 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 B650M A II 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.
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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

DDR5
ASUS Prime B650M A II 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 B650M A II 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

192 GB
ASUS Prime B650M A II supports up to 192 GB of memory, which is more than 72.6% of motherboards and equal to 10.1% of motherboards.
Memory channels
What it is: The memory channel configuration supported by the motherboard platform.
When it matters: When memory bandwidth matters for your build.

Importance: MEDIUM

2
ASUS Prime B650M A II 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

7,600 MT/s
ASUS Prime B650M A II supports memory speeds up to 7600 MT/s, which is higher than that of 80.9% of motherboards and equal to that of 2.4% 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
ASUS Prime B650M A II 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/SATA
ASUS Prime B650M A II offers 1x PCIe 5.0x4, 1x PCIe 4.0x4/SATA for M.2 slot interfaces, which is faster than that of 79.6% of motherboards and equal to that of 0.2% 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 B650M A II 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

0/1/10
ASUS Prime B650M A II supports RAID levels 0/1/10, which is narrower than 68.3% of motherboards and equal to 23.2% 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
ASUS Prime B650M A II supports NVMe RAID. 40.3% of motherboards support this feature.
AMD RAIDXpert2 support
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N. of PCIe 5.0 x16 slots
What it is: The number of PCIe 5.0 x16 physical slots on the motherboard.
When it matters: When you want the newest high-bandwidth expansion slots.

Importance: HIGH

Good value: >=1

0
ASUS Prime B650M A II has 0 PCIe 5.0x16 slots, which is equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
What it is: The number of PCIe 4.0 x16 physical slots on the motherboard.
When it matters: When you want more room for modern expansion cards.

Importance: HIGH

Good value: >=1

3
ASUS Prime B650M A II has 3 PCIe 4.0x16 slots, which is more than 97.4% of motherboards and equal to 2.4% of motherboards.
runs at x1 mode
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 B650M A II has 0 PCIe 3.0x16 slots, which is fewer than 59.5% of motherboards and equal to 40.5% of motherboards.
PCIe slot electrical configuration
What it is: The actual lane wiring used by the motherboard PCIe slots.
When it matters: When you need to know how much bandwidth each slot really gets.

Importance: HIGH

x16/x1/x1
ASUS Prime B650M A II uses x16/x1/x1 for PCIe slot electrical configuration, which is less flexible than that of 61.7% of motherboards and equal to that of 8% 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 B650M A II supports PCIe bifurcation. 39.1% of motherboards support this feature.
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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 B650M A II 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

15
ASUS Prime B650M A II has 15 USB ports (including headers), which is more than 48.3% of motherboards and equal to 13.5% 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 B650M A II has 1 USB-C ports (rear I/O), which is more than 35.4% of motherboards and equal to 48.8% of motherboards.
Total USB-C ports (including headers)
What it is: The total number of USB-C ports supported when rear ports and internal headers are counted together.
When it matters: When you want more USB-C connectivity across the whole build.

Importance: MEDIUM

Good value: >=2

1
ASUS Prime B650M A II has 1 USB-C ports (including headers), which is more than 30.5% of motherboards and equal to 21.3% of motherboards.
N. of USB 3.2 Gen2x2 ports (USB-C)
What it is: The number of rear USB 3.2 Gen2x2 Type-C ports on the motherboard.
When it matters: When you want very fast USB-C connectivity on the rear I/O.

Importance: HIGH

Good value: >=1

0
ASUS Prime B650M A II 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

2.5 Gbps
ASUS Prime B650M A II 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.
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 B650M A II 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 B650M A II supports Wi-Fi connectivity. 50.9% of motherboards support this feature.
Wi-Fi version
What it is: The supported Wi-Fi generation, such as Wi-Fi 6 or Wi-Fi 7.
When it matters: When you care about wireless speed and router compatibility.

Importance: MEDIUM

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

N/A
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 B650M A II 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 B650M A II 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

?
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 B650M A II 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 B650M A II 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

8+2
ASUS Prime B650M A II has 8+2 VRM phases, which is fewer than 59.1% of motherboards and equal to 4.5% 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 B650M A II 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
ASUS Prime B650M A II 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

?
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

0 A
ASUS Prime B650M A II supports up to 0 A on the pump header, which is lower than that of 74.3% of motherboards and equal to that of 25.7% of motherboards.
Show more

ASUS Prime B650M A II vs the average motherboard

  • Newer CPU socket
    ASUS Prime B650M A II has newer CPU socket than the average motherboard (AM5 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 B650M A II has newer CPU socket than the average motherboard (AM5 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.AM5 vs LGA 1151
  • Newer DDR memory generation
    ASUS Prime B650M A II 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 B650M A II has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.DDR5 vs DDR4
  • 3 more PCIe 4.0x16 slots
    ASUS Prime B650M A II has more PCIe 4.0x16 slots than the average motherboard (3 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    runs at x1 mode
    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 B650M A II has more PCIe 4.0x16 slots than the average motherboard (3 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.3 vs 0
  • 50% more maximum memory capacity
    ASUS Prime B650M A II has more maximum memory capacity than the average motherboard (192 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 B650M A II has more maximum memory capacity than the average motherboard (192 GB vs 128 GB). The average motherboard supports 128 GB of memory.192 GB vs 128 GB
  • Supports Wi-Fi
    ASUS Prime B650M A II 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

    ASUS Prime B650M A II supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • 1 more USB 3.2 Gen2 ports
    ASUS Prime B650M A II has more USB 3.2 Gen2 ports than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    What it is: The number of rear USB 3.2 Gen2 Type-A ports on the motherboard.
    When it matters: When you want faster USB-A ports for storage or accessories.

    Importance: MEDIUM

    Good value: >=2

    ASUS Prime B650M A II has more USB 3.2 Gen2 ports than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.2 vs 1
  • 65.2% higher maximum RAM speed
    ASUS Prime B650M A II has a higher maximum RAM speed than the average motherboard (7,600 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 B650M A II has a higher maximum RAM speed than the average motherboard (7,600 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.7600 MT/s vs 4600 MT/s
  • Supports ECC memory
    ASUS Prime B650M A II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
    supports ECC unbuffered memory.
    What it is: Shows whether the motherboard can work with ECC memory on supported CPU and platform combinations.
    When it matters: When stability and error correction matter in your system.

    Importance: MEDIUM

    ASUS Prime B650M A II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • Newer CPU socket
    ASUS Prime B650M A II has newer CPU socket than the average motherboard (AM5 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • Newer DDR memory generation
    ASUS Prime B650M A II has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.
  • 50% more maximum memory capacity
    ASUS Prime B650M A II has more maximum memory capacity than the average motherboard (192 GB vs 128 GB). The average motherboard supports 128 GB of memory.
  • 65.2% higher maximum RAM speed
    ASUS Prime B650M A II has a higher maximum RAM speed than the average motherboard (7,600 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • Supports ECC memory
    ASUS Prime B650M A II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • 54.1% higher overclocked RAM speed
    ASUS Prime B650M A II has a higher overclocked RAM speed than the average motherboard (7,600 MT/s vs 4,933 MT/s). The average motherboard supports overclocked RAM speed of 4,933 MT/s.
  • 3 more PCIe 4.0x16 slots
    ASUS Prime B650M A II has more PCIe 4.0x16 slots than the average motherboard (3 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
  • 1 more USB 3.2 Gen2 ports
    ASUS Prime B650M A II has more USB 3.2 Gen2 ports than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
  • 1 more USB4 or Thunderbolt headers
    ASUS Prime B650M A II has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
  • Includes VGA connector
    ASUS Prime B650M A II has a VGA connector, while the average motherboard does not. 22% of motherboards include a VGA connector.
  • 2 more USB 2.0 ports
    ASUS Prime B650M A II 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 B650M A II supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • 1 more ARGB headers
    ASUS Prime B650M A II has more ARGB headers than the average motherboard (3 vs 2). The average motherboard has 2 ARGB header/s.
  • 61 mm shorter
    ASUS Prime B650M A II 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
  • More basic motherboard chipset
    ASUS Prime B650M A II has more basic motherboard chipset than the average motherboard (AMD B650 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • Less versatile form factor
    ASUS Prime B650M A II has less versatile form factor than the average motherboard (microATX vs ATX). The average motherboard comes in ATX form factor.
  • Fewer RAID options
    ASUS Prime B650M A II has fewer RAID options than the average motherboard (0/1/10 vs 0/1/5/10). The average motherboard has 0/1/5/10 RAID level/s.
  • Slower M.2 slot interfaces
    ASUS Prime B650M A II has slower M.2 slot interfaces than the average motherboard (1x PCIe 5.0x4, 1x PCIe 4.0x4/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.
  • No multi-GPU support
    ASUS Prime B650M A II does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
    Single PCIe x16 slot only.
  • 1 fewer PCIe x1 slots
    ASUS Prime B650M A II has fewer PCIe x1 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe x1 slot/s.
  • 1 fewer PCIe 3.0x16 slots
    ASUS Prime B650M A II has fewer PCIe 3.0x16 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
  • 2 fewer USB 3.2 Gen1 ports
    ASUS Prime B650M A II 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.
  • Older Bluetooth version
    ASUS Prime B650M A II has older Bluetooth version than the average motherboard (5.2 vs 5.4). The average motherboard supports Bluetooth 5.4.
  • No headphone amp support
    ASUS Prime B650M A II does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • More basic audio codec
    ASUS Prime B650M A II 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 B650M A II 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 B650M A II does not have optical S/PDIF out, while the average motherboard does. 55.7% of motherboards include optical S/PDIF out.
  • 2 A lower pump header current limit
    ASUS Prime B650M A II has a lower pump header current than the average motherboard (0 A vs 2 A). The average motherboard provides pump header current of 2 A.
  • 1 fewer fan headers
    ASUS Prime B650M A II has fewer fan headers than the average motherboard (4 vs 5). The average motherboard has 5 fan header/s.
  • Fewer VRM phases
    ASUS Prime B650M A II has fewer VRM phases than the average motherboard (8+2 vs 10). The average motherboard has 10 VRM phase/s.
  • Fewer RAID options
    ASUS Prime B650M A II has fewer RAID options than the average motherboard (0/1/10 vs 0/1/5/10). The average motherboard has 0/1/5/10 RAID level/s.
    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

    ASUS Prime B650M A II has fewer RAID options than the average motherboard (0/1/10 vs 0/1/5/10). The average motherboard has 0/1/5/10 RAID level/s.0/1/10 vs 0/1/5/10
  • No multi-GPU support
    ASUS Prime B650M A II does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
    Single PCIe x16 slot only.
    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 B650M A II 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 B650M A II 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 B650M A II 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 B650M A II 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 B650M A II does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • More basic motherboard chipset
    ASUS Prime B650M A II has more basic motherboard chipset than the average motherboard (AMD B650 vs Intel B860). The average motherboard uses Intel B860 chipset.
    What it is: The chipset that defines the motherboard platform and many of its features.
    When it matters: When you compare platform features, connectivity, and CPU support.

    Importance: HIGH

    ASUS Prime B650M A II has more basic motherboard chipset than the average motherboard (AMD B650 vs Intel B860). The average motherboard uses Intel B860 chipset.AMD B650 vs Intel B860
  • More basic audio codec
    ASUS Prime B650M A II 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 B650M A II 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
  • 2 fewer 3.5mm audio jacks
    ASUS Prime B650M A II 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 B650M A II 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
  • 2 A lower pump header current limit
    ASUS Prime B650M A II has a lower pump header current than the average motherboard (0 A vs 2 A). The average motherboard provides pump header current of 2 A.
    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

    ASUS Prime B650M A II has a lower pump header current than the average motherboard (0 A vs 2 A). The average motherboard provides pump header current of 2 A.0 A vs 2 A
Total
Platform & Features
Storage
Expansion
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

United Kingdom
amazon
4.4
132 Reviews
amazon
4.1
27 Reviews
United States
Amazon_logo.png
4.4
130 Reviews
Amazon_logo.png
3.9
29 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS Prime B650M A II?

  • Ideal for NAS builds due to having 8 SATA ports for extensive storage expansion
  • Features a PCIe 5.0 M.2 slot for ultra-fast next-gen storage support
  • Includes BIOS FlashBack for easy updates without needing a CPU installed
  • Equipped with 2.5Gb Ethernet for high-speed wired networking
  • Budget-friendly price point for an AM5 platform motherboard
  • Comprehensive fan control through Fan Xpert 2+ software

What customers dislike about ASUS Prime B650M A II?

  • Poor VRM quality and high operating temperatures reported when paired with high-end CPUs
  • Common reports of long POST (boot) times, sometimes exceeding 40 seconds
  • Users have experienced system instability and random reboots, particularly with certain RAM configurations
  • Memory training failures and issues enabling high-speed EXPO profiles
  • Inconsistent hardware experiences, such as some users reporting only 1Gb LAN speeds despite 2.5Gb specs
  • Lack of integrated M.2 heatsinks and overall 'shoddy' build quality compared to competitors

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