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ASUS Prime B550M A WiFi II Review | 107 Data compared

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  • Avg. price in UK: ~£90
  • Avg. price in US: ~$100
  • CPU socket: AM4
  • Chipset: AMD B550
  • Form factor: microATX

ASUS Prime B550M A WiFi II review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

6.4

Overall score

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

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

Score components:

90.0%

6.1

Technical Score

10.0%

9.1

User score

Good
6.1

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%

7.1

Memory

16.0%

6.8

Platform & Features

16.0%

6.0

Storage

15.0%

7.5

Network

13.0%

2.8

Ports & USB

8.0%

4.5

Expansion

8.0%

6.9

Power & Cooling

5.0%

6.5

Audio

Good
9.1

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%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(936)
amazon
4.4
(591)
amazon
4.2
(77)
United States
Amazon_logo.png
4.4
(949)
Amazon_logo.png
4.4
(586)

(Reviews last updated: May 2026)

Exceptional
  • 5.7
    Gaming

    Score components:

    28.0%

    9.0

    VRM phases

    22.0%

    5.5

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    5.6

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

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Best rankings

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

Verdict

The ASUS Prime B550M-A WIFI II is a micro-ATX motherboard designed for AMD AM4 socket processors, supporting Ryzen 5000, 4000 G, and 3000 series CPUs. Key specifications include dual M.2 slots with PCIe 4.0 support on the primary slot, four DDR4 DIMM slots supporting up to 128GB of RAM at overclocked speeds of 4866MHz, and integrated Wi-Fi 6 with Bluetooth 5.2. For connectivity, it features Realtek 1Gb Ethernet, USB 3.2 Gen 2 Type-A ports, and video outputs including HDMI 2.1, DVI-D, and D-Sub. Main pros include its built-in wireless connectivity, PCIe 4.0 readiness for faster SSDs, and comprehensive cooling with VRM and PCH heatsinks. However, cons include a relatively basic VRM design that may run hot under heavy loads or when paired with high-end Ryzen 9 CPUs, a lack of front-panel USB-C headers, and a Wi-Fi module that some users report can be difficult to configure with standard drivers.

Technical Specifications of ASUS Prime B550M A WiFi 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%

7.1

Memory

16.0%

6.8

Platform & Features

16.0%

6.0

Storage

15.0%

7.5

Network

13.0%

2.8

Ports & USB

8.0%

4.5

Expansion

8.0%

6.9

Power & Cooling

5.0%

6.5

Audio

6.1
ASUS Prime B550M A WiFi II has a technical score of 6.14 points, which is lower than that of 54% 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%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(936)
amazon
4.4
(591)
amazon
4.2
(77)
United States
Amazon_logo.png
4.4
(949)
Amazon_logo.png
4.4
(586)

(Reviews last updated: May 2026)

9.1
ASUS Prime B550M A WiFi II has a user score of 9.15 points, which is higher than that of 86.3% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the motherboard.
When it matters: When you prefer a motherboard that has already been bought and reviewed by many other users.
10
ASUS Prime B550M A WiFi II has a popularity of 10 points, which is higher than 79.9% 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%

6.4

Overall score

40.0%

10

Price

7.5
ASUS Prime B550M A WiFi II has a quality-to-price ratio of 7.5 points, which is higher than 54% of products in this category.
Brand name
What it is: The brand that makes the motherboard.
When it matters: When you have a brand preference for support, BIOS, or build quality.

Importance: MEDIUM

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

Importance: HIGH

AM4
ASUS Prime B550M A WiFi II uses the AM4 CPU socket, which is more advanced than that of 38.5% of motherboards and equal to that of 13.3% 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 B550
ASUS Prime B550M A WiFi II uses the AMD B550 chipset, which is more advanced than that of 50.5% of motherboards and equal to that of 4.4% 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 B550M A WiFi 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.
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

DDR4
ASUS Prime B550M A WiFi II uses DDR4 memory, which is newer than that of 13.6% of motherboards and equal to that of 51% of motherboards.
Memory slots
What it is: The number of RAM slots on the motherboard.
When it matters: When you want more room for future memory upgrades.

Importance: HIGH

Good value: >=4

4
ASUS Prime B550M A WiFi 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

128 GB
ASUS Prime B550M A WiFi II supports up to 128 GB of memory, which is more than 40.4% of motherboards and equal to 32.1% of motherboards.
Memory channels
What it is: The memory channel configuration supported by the motherboard platform.
When it matters: When memory bandwidth matters for your build.

Importance: MEDIUM

2
ASUS Prime B550M A WiFi 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

4,866 MT/s
ASUS Prime B550M A WiFi II supports memory speeds up to 4866 MT/s, which is higher than that of 56.5% of motherboards and equal to that of 0.4% of motherboards.
maximum depends on CPU configuration
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 B550M A WiFi 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 4.0 x4/SATA, 1x PCIe 3.0 x4/SATA
ASUS Prime B550M A WiFi II offers 1x PCIe 4.0x4/SATA, 1x PCIe 3.0x4/SATA for M.2 slot interfaces, which is slower than that of 50.5% of motherboards and equal to that of 1.3% 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 B550M A WiFi 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 B550M A WiFi 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 B550M A WiFi II supports NVMe RAID. 40.3% of motherboards support this feature.
Show more
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 B550M A WiFi 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

1
ASUS Prime B550M A WiFi II 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

1
ASUS Prime B550M A WiFi II has 1 PCIe 3.0x16 slots, which is more than 40.6% of motherboards and equal to 26.7% 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

?
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 B550M A WiFi II supports PCIe bifurcation. 39.1% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
What it is: The total number of rear USB ports available on the motherboard.
When it matters: When you use many USB devices directly from the back of the PC.

Importance: MEDIUM

Good value: >=8

6
ASUS Prime B550M A WiFi II has 6 USB ports (rear I/O), which is fewer than 64.2% of motherboards and equal to 32.9% of motherboards.
Total USB ports (including headers)
What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
When it matters: When you want to know the board's full USB expansion potential.

Importance: MEDIUM

Good value: >=14

12
ASUS Prime B550M A WiFi II has 12 USB ports (including headers), which is fewer than 72.4% of motherboards and equal to 16.6% of motherboards.
Total USB-C ports (rear I/O)
What it is: The total number of rear USB-C ports on the motherboard.
When it matters: When you want more USB-C devices connected without adapters.

Importance: MEDIUM

Good value: >=1

0
ASUS Prime B550M A WiFi II has 0 USB-C ports (rear I/O), which is fewer than 64.6% of motherboards and equal to 35.4% 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

0
ASUS Prime B550M A WiFi II has 0 USB-C ports (including headers), which is fewer than 69.6% of motherboards and equal to 30.4% 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 B550M A WiFi II has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
Show more
LAN speed
What it is: The maximum wired Ethernet speed supported by the motherboard.
When it matters: When you want faster wired networking.

Importance: HIGH

Good value: 2.5GbE

1 Gbps
ASUS Prime B550M A WiFi II supports LAN speeds up to 1 Gbps, which is lower than that of 50.8% of motherboards and equal to that of 49.1% of motherboards.
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 B550M A WiFi 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 B550M A WiFi II supports Wi-Fi connectivity. 50.9% of motherboards support this feature.
Wi-Fi version
What it is: The supported Wi-Fi generation, such as Wi-Fi 6 or Wi-Fi 7.
When it matters: When you care about wireless speed and router compatibility.

Importance: MEDIUM

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

Wi-Fi 6 (802.11ax)
ASUS Prime B550M A WiFi II supports Wi-Fi 6 (802.11ax), which is newer than that of 60.4% of motherboards and equal to that of 11.6% 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 ALC887/897
ASUS Prime B550M A WiFi II uses the Realtek ALC887/897 audio codec, which is less advanced than that of 97.3% of motherboards and equal to that of 0.5% of motherboards.
Audio channels
What it is: The audio channel configuration supported by the onboard sound solution.
When it matters: When you want surround sound from the motherboard audio outputs.

Importance: LOW

Good value: 7.1

7.1
ASUS Prime B550M A WiFi II offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
full 7.1 needs front panel audio.
Audio SNR
What it is: The signal-to-noise ratio of the onboard audio solution.
When it matters: When you care about cleaner onboard audio output.

Importance: MEDIUM

Good value: >=120 dB

97 dB
ASUS Prime B550M A WiFi II has an audio SNR of 97 dB, which is lower than that of 67.3% of motherboards and equal to that of 16.8% of motherboards.
Headphone amp support
What it is: Shows whether the onboard audio path includes dedicated headphone amplification for harder-to-drive headsets.
When it matters: When you use harder-to-drive headphones from the onboard audio.

Importance: LOW

yes
ASUS Prime B550M A WiFi II supports a headphone amp. 37% of motherboards support this feature.
N. of 3.5mm audio jacks
What it is: The number of rear 3.5mm audio jacks on the motherboard.
When it matters: When you want more analog audio connection options.

Importance: LOW

Good value: >=5

3
ASUS Prime B550M A WiFi 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

?
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 B550M A WiFi 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 B550M A WiFi 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

yes
ASUS Prime B550M A WiFi II has a pump header. 23.1% of motherboards include this feature.
Pump header max current
What it is: The maximum current the dedicated pump header can supply.
When it matters: When you want to make sure the pump header can power your cooling setup.

Importance: LOW

Good value: >=2 A

0 A
ASUS Prime B550M A WiFi 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 B550M A WiFi II vs the average motherboard

  • 1 more PCIe 4.0x16 slots
    ASUS Prime B550M A WiFi II 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 B550M A WiFi II 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
  • Supports Wi-Fi
    ASUS Prime B550M A WiFi 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 B550M A WiFi 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 B550M A WiFi 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 B550M A WiFi 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
  • Newer CPU socket
    ASUS Prime B550M A WiFi II has newer CPU socket than the average motherboard (AM4 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 B550M A WiFi II has newer CPU socket than the average motherboard (AM4 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.AM4 vs LGA 1151
  • Supports ECC memory
    ASUS Prime B550M A WiFi II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
    ECC requires compatible CPU.
    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 B550M A WiFi II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • Supports Bluetooth
    ASUS Prime B550M A WiFi II supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
    What it is: Shows whether the motherboard includes built-in Bluetooth for wireless peripherals and accessories.
    When it matters: When you want to connect wireless peripherals without an adapter.

    Importance: LOW

    ASUS Prime B550M A WiFi II supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
  • 1 more RGB headers
    ASUS Prime B550M A WiFi II has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.
    What it is: The number of 4-pin RGB headers available on the motherboard.
    When it matters: When you want to connect more standard RGB lighting devices.

    Importance: LOW

    Good value: >=2

    ASUS Prime B550M A WiFi II has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.2 vs 1
  • 1 more DVI outputs
    ASUS Prime B550M A WiFi II has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.
    What it is: The number of DVI video outputs on the motherboard.
    When it matters: When you plan to use older compatible monitors.

    Importance: LOW

    ASUS Prime B550M A WiFi II has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.1 vs 0
  • Newer CPU socket
    ASUS Prime B550M A WiFi II has newer CPU socket than the average motherboard (AM4 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • Supports ECC memory
    ASUS Prime B550M A WiFi II supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • 1 more PCIe 4.0x16 slots
    ASUS Prime B550M A WiFi II has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
  • 1 more PCIe x1 slots
    ASUS Prime B550M A WiFi II has more PCIe x1 slots than the average motherboard (2 vs 1). The average motherboard has 1 PCIe x1 slot/s.
  • 1 more USB 3.2 Gen2 ports
    ASUS Prime B550M A WiFi 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 DVI outputs
    ASUS Prime B550M A WiFi II has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.
  • Includes VGA connector
    ASUS Prime B550M A WiFi II has a VGA connector, while the average motherboard does not. 22% of motherboards include a VGA connector.
  • Supports Wi-Fi
    ASUS Prime B550M A WiFi II supports Wi-Fi connectivity, while the average motherboard does not. 49.1% of motherboards support Wi-Fi connectivity.
  • Supports Bluetooth
    ASUS Prime B550M A WiFi II supports Bluetooth, while the average motherboard does not. 47% of motherboards support Bluetooth.
  • 1 more RGB headers
    ASUS Prime B550M A WiFi II has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.
  • 61 mm shorter
    ASUS Prime B550M A WiFi II is shorter than the average motherboard (244 mm vs 305 mm). The average motherboard height is 305 mm.

Total
Overall
Platform & Features
Memory
Expansion
Ports & USB
Network
Power & Cooling
  • More basic motherboard chipset
    ASUS Prime B550M A WiFi II has more basic motherboard chipset than the average motherboard (AMD B550 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No BIOS flashback support
    ASUS Prime B550M A WiFi II does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • No debug LED indicators
    ASUS Prime B550M A WiFi II does not have debug LED indicators, while the average motherboard does. 78.8% of motherboards include debug LED indicators.
  • Less versatile form factor
    ASUS Prime B550M A WiFi II 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 B550M A WiFi II has slower M.2 slot interfaces than the average motherboard (1x PCIe 4.0x4/SATA, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
  • Fewer RAID options
    ASUS Prime B550M A WiFi 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.
  • No multi-GPU support
    ASUS Prime B550M A WiFi II does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
  • 2 fewer rear USB ports
    ASUS Prime B550M A WiFi II has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
  • 1 fewer rear USB-C ports
    ASUS Prime B550M A WiFi II has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
  • 3 fewer total USB connections
    ASUS Prime B550M A WiFi II has fewer total USB connections than the average motherboard (12 vs 15). The average motherboard has 15 total USB connections.
  • 1 fewer DisplayPort outputs
    ASUS Prime B550M A WiFi II has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
  • 1 fewer total USB-C connections
    ASUS Prime B550M A WiFi II has fewer total USB-C connections than the average motherboard (0 vs 1). The average motherboard has 1 total USB-C connections.
  • 2 fewer USB 2.0 ports
    ASUS Prime B550M A WiFi II has fewer USB 2.0 ports than the average motherboard (0 vs 2). The average motherboard has 2 USB 2.0 port/s.
  • 60% lower LAN speed
    ASUS Prime B550M A WiFi II has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
  • Older Bluetooth version
    ASUS Prime B550M A WiFi II has older Bluetooth version than the average motherboard (5.2 vs 5.4). The average motherboard supports Bluetooth 5.4.
  • More basic audio codec
    ASUS Prime B550M A WiFi II has more basic audio codec than the average motherboard (Realtek ALC887/897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • 18 dB lower audio SNR
    ASUS Prime B550M A WiFi II has a lower audio SNR than the average motherboard (97 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • 2 fewer 3.5mm audio jacks
    ASUS Prime B550M A WiFi 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 B550M A WiFi II does not have optical S/PDIF out, while the average motherboard does. 55.7% of motherboards include optical S/PDIF out.
  • No onboard RGB lighting
    ASUS Prime B550M A WiFi II does not have onboard RGB lighting, while the average motherboard does. 50.3% of motherboards include onboard RGB lighting.
  • 2 A lower pump header current limit
    ASUS Prime B550M A WiFi 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 ARGB headers
    ASUS Prime B550M A WiFi II has fewer ARGB headers than the average motherboard (1 vs 2). The average motherboard has 2 ARGB header/s.
  • 1 fewer fan headers
    ASUS Prime B550M A WiFi II has fewer fan headers than the average motherboard (4 vs 5). The average motherboard has 5 fan header/s.
  • 60% lower LAN speed
    ASUS Prime B550M A WiFi II has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
    What it is: The maximum wired Ethernet speed supported by the motherboard.
    When it matters: When you want faster wired networking.

    Importance: HIGH

    Good value: 2.5GbE

    ASUS Prime B550M A WiFi II has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.1 Gbps vs 2.5 Gbps
  • More basic motherboard chipset
    ASUS Prime B550M A WiFi II has more basic motherboard chipset than the average motherboard (AMD B550 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 B550M A WiFi II has more basic motherboard chipset than the average motherboard (AMD B550 vs Intel B860). The average motherboard uses Intel B860 chipset.AMD B550 vs Intel B860
  • Slower M.2 slot interfaces
    ASUS Prime B550M A WiFi II has slower M.2 slot interfaces than the average motherboard (1x PCIe 4.0x4/SATA, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    What it is: The storage or PCIe interface available for each M.2 slot on the motherboard.
    When it matters: When you want to check which drives each M.2 slot can use.

    Importance: HIGH

    ASUS Prime B550M A WiFi II has slower M.2 slot interfaces than the average motherboard (1x PCIe 4.0x4/SATA, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.1x PCIe 4.0x4/SATA, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • 2 fewer rear USB ports
    ASUS Prime B550M A WiFi II has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
    What it is: The total number of rear USB ports available on the motherboard.
    When it matters: When you use many USB devices directly from the back of the PC.

    Importance: MEDIUM

    Good value: >=8

    ASUS Prime B550M A WiFi II has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.6 vs 8
  • More basic audio codec
    ASUS Prime B550M A WiFi II has more basic audio codec than the average motherboard (Realtek ALC887/897 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 B550M A WiFi II has more basic audio codec than the average motherboard (Realtek ALC887/897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.Realtek ALC887/897 vs Realtek ALC898
  • No BIOS flashback support
    ASUS Prime B550M A WiFi II does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    What it is: Shows whether the motherboard can update BIOS without needing a fully installed or supported CPU to boot first.
    When it matters: When you may need to update BIOS before the system can boot.

    Importance: MEDIUM

    ASUS Prime B550M A WiFi II does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • 1 fewer rear USB-C ports
    ASUS Prime B550M A WiFi II has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
    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

    ASUS Prime B550M A WiFi II has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.0 vs 1
  • 3 fewer total USB connections
    ASUS Prime B550M A WiFi II has fewer total USB connections than the average motherboard (12 vs 15). The average motherboard has 15 total USB connections.
    What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
    When it matters: When you want to know the board's full USB expansion potential.

    Importance: MEDIUM

    Good value: >=14

    ASUS Prime B550M A WiFi II has fewer total USB connections than the average motherboard (12 vs 15). The average motherboard has 15 total USB connections.12 vs 15
Total
Platform & Features
Storage
Expansion
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

United Kingdom
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4.4
936 Reviews
amazon
4.4
591 Reviews
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4.2
77 Reviews
United States
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4.4
949 Reviews
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4.4
586 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS Prime B550M A WiFi II?

  • Excellent value for money for budget to mid-range AM4 builds
  • Out-of-the-box compatibility with Ryzen 5000 series CPUs (no BIOS update usually needed)
  • Includes built-in Wi-Fi 6 and Bluetooth connectivity
  • Supports PCIe 4.0 for the primary GPU and M.2 NVMe slots
  • User-friendly BIOS interface (EZ Mode) suitable for beginners
  • Includes multiple RGB and ARGB headers for lighting customization

What customers dislike about ASUS Prime B550M A WiFi II?

  • Weak VRM (Voltage Regulator Module) cooling; can run very hot with high-wattage CPUs (e.g., Ryzen 9)
  • No BIOS Flashback button, making it hard to update if you have an incompatible CPU
  • Dated and clunky 'Advanced Mode' BIOS interface compared to premium ROG models
  • Lacks a USB Type-C port on the rear I/O and sometimes lacks a front-panel Type-C header
  • Limited overclocking headroom due to basic power phase design

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