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ASUS Prime B450 Plus Review | 107 Data compared

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  • Avg. price: ~£90
  • CPU socket: AM4
  • Chipset: AMD B450
  • Form factor: ATX

ASUS Prime B450 Plus review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

5.8

Overall score

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

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

Score components:

90.0%

5.4

Technical Score

10.0%

9.4

User score

Good
5.4

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%

6.9

Memory

16.0%

6.1

Platform & Features

16.0%

4.8

Storage

15.0%

5.0

Network

13.0%

4.2

Ports & USB

8.0%

4.6

Expansion

8.0%

5.2

Power & Cooling

5.0%

5.7

Audio

Good
9.4

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%

9.2

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.6
(1939)
amazon
4.6
(721)
United States
Amazon_logo.png
4.5
(1923)
Amazon_logo.png
4.6
(733)

(Reviews last updated: May 2026)

Exceptional
  • 3.4
    Gaming

    Score components:

    28.0%

    4.5

    VRM phases

    22.0%

    3.3

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    2.5

    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 B450-Plus is an ATX motherboard built on the AMD B450 chipset, supporting AM4-socket processors including Ryzen 5000, 3000, 2000, and 1st Gen series. It features four DDR4 DIMM slots supporting up to 128GB of memory at overclocked speeds of up to 4400MHz, a single M.2 slot with PCIe 3.0 x4 bandwidth for 32Gbps data transfers, and six SATA 6Gb/s ports with RAID 0, 1, and 10 support. High-speed connectivity is provided via USB 3.1 Gen 2 Type-A (10Gbps) and a USB Type-C port, while its 5X Protection III hardware safeguards and SafeSlot Core design ensure long-term durability. Main pros include its highly user-friendly UEFI BIOS, Aura Sync RGB header for custom lighting, and reliable cooling controls via Fan Xpert 4 Core. However, notable cons include a limited number of fan headers for larger builds, modest VRM heatsinks that may limit heavy overclocking of high-core-count CPUs, and the lack of integrated Wi-Fi.

Technical Specifications of ASUS Prime B450 Plus

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%

6.9

Memory

16.0%

6.1

Platform & Features

16.0%

4.8

Storage

15.0%

5.0

Network

13.0%

4.2

Ports & USB

8.0%

4.6

Expansion

8.0%

5.2

Power & Cooling

5.0%

5.7

Audio

5.4
ASUS Prime B450 Plus has a technical score of 5.42 points, which is lower than that of 70.3% 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%

9.2

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.6
(1939)
amazon
4.6
(721)
United States
Amazon_logo.png
4.5
(1923)
Amazon_logo.png
4.6
(733)

(Reviews last updated: May 2026)

9.4
ASUS Prime B450 Plus has a user score of 9.44 points, which is higher than that of 97.4% 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.
10
ASUS Prime B450 Plus 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%

5.8

Overall score

40.0%

10

Price

7.1
ASUS Prime B450 Plus has a quality-to-price ratio of 7.1 points, which is lower than 58.1% 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 B450 Plus 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 B450
ASUS Prime B450 Plus uses the AMD B450 chipset, which is less advanced than that of 54.8% of motherboards and equal to that of 1.8% of motherboards.
Form factor
What it is: The physical size standard of the motherboard, such as ATX or Micro-ATX.
When it matters: When you need the board to fit a specific case size.

Importance: HIGH

ATX
ASUS Prime B450 Plus has the ATX form factor, which is more versatile than that of 47.8% of motherboards and equal to that of 52.2% of motherboards.
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DDR memory version
What it is: The RAM generation the motherboard supports, such as DDR4 or DDR5.
When it matters: When you need the board to match a certain memory platform.

Importance: HIGH

Good value: DDR5

DDR4
ASUS Prime B450 Plus 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 B450 Plus 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 B450 Plus supports up to 128 GB of memory, which is more than 40.4% of motherboards and equal to 32.1% of motherboards.
requires BIOS update for full capacity
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 B450 Plus 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

2,666 MT/s
ASUS Prime B450 Plus supports memory speeds up to 2666 MT/s, which is lower than that of 78.8% of motherboards and equal to that of 4.7% 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

1
ASUS Prime B450 Plus has 1 M.2 sockets, which is fewer than 69.2% of motherboards and equal to 19.1% 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 3.0 x4/SATA
ASUS Prime B450 Plus offers 1x PCIe 3.0x4/SATA for M.2 slot interfaces, which is slower than that of 73.8% of motherboards and equal to that of 10.4% of motherboards.
N. of SATA 3 connectors
What it is: The number of SATA 6Gb/s connectors on the motherboard.
When it matters: When you plan to connect multiple SATA drives.

Importance: MEDIUM

Good value: >=6

6
ASUS Prime B450 Plus has 6 SATA 3 connectors, which is more than 52.6% of motherboards and equal to 32.1% of motherboards.
Supported RAID levels
What it is: The RAID modes officially supported by the motherboard storage platform.
When it matters: When you plan to use multiple drives in a RAID setup.

Importance: MEDIUM

0/1/10
ASUS Prime B450 Plus supports RAID levels 0/1/10, which is narrower than 68.3% of motherboards and equal to 23.2% of motherboards.
JBOD excluded from RAID-level set
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 B450 Plus supports NVMe RAID. 40.3% of motherboards support this feature.
RAID 0/1/10 only
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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 B450 Plus has 0 PCIe 5.0x16 slots, which is equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
What it is: The number of PCIe 4.0 x16 physical slots on the motherboard.
When it matters: When you want more room for modern expansion cards.

Importance: HIGH

Good value: >=1

0
ASUS Prime B450 Plus has 0 PCIe 4.0x16 slots, which is equal to 55.6% of motherboards.
N. of PCIe 3.0 x16 slots
What it is: The number of PCIe 3.0 x16 physical slots on the motherboard.
When it matters: When you need more full-length expansion slots.

Importance: MEDIUM

1
ASUS Prime B450 Plus 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

x16/x16/x4/x1/x1/x1/x16
ASUS Prime B450 Plus uses x16/x16/x4/x1/x1/x1/x16 for PCIe slot electrical configuration, which is more flexible than that of 99.2% 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

?
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

7
ASUS Prime B450 Plus has 7 USB ports (rear I/O), which is fewer than 59.8% of motherboards and equal to 4.4% 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

14
ASUS Prime B450 Plus has 14 USB ports (including headers), which is fewer than 51.8% of motherboards and equal to 12.9% 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 B450 Plus 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 B450 Plus 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 B450 Plus 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 B450 Plus 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

Realtek RTL8111H
ASUS Prime B450 Plus uses the Realtek RTL8111H LAN controller, which is less advanced than that of 74.7% of motherboards and equal to that of 10.2% of motherboards.
N. of RJ45 ports
What it is: The number of wired Ethernet ports on the motherboard.
When it matters: When you need one or more wired network connections.

Importance: LOW

1
ASUS Prime B450 Plus 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

no
ASUS Prime B450 Plus does not support Wi-Fi connectivity. 49.1% 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 ALC887
ASUS Prime B450 Plus uses the Realtek ALC887 audio codec, which is less advanced than that of 89% of motherboards and equal to that of 7.9% 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 B450 Plus 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

97 dB
ASUS Prime B450 Plus 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

no
ASUS Prime B450 Plus 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 B450 Plus 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

4+2
ASUS Prime B450 Plus has 4+2 VRM phases, which is fewer than 88.6% of motherboards and equal to 5.8% 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 B450 Plus 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 B450 Plus 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 B450 Plus 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 B450 Plus 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.
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ASUS Prime B450 Plus vs the average motherboard

  • More flexible PCIe lane configuration
    ASUS Prime B450 Plus has more flexible PCIe lane configuration than the average motherboard (x16/x16/x4/x1/x1/x1/x16 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane 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

    ASUS Prime B450 Plus has more flexible PCIe lane configuration than the average motherboard (x16/x16/x4/x1/x1/x1/x16 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.x16/x16/x4/x1/x1/x1/x16 vs x16/x1
  • 1 more USB 3.2 Gen1 USB-C ports
    ASUS Prime B450 Plus has more USB 3.2 Gen1 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen1 USB-C port/s.
    What it is: The number of rear USB 3.2 Gen1 Type-C ports on the motherboard.
    When it matters: When you want more USB-C connectivity on the rear I/O.

    Importance: MEDIUM

    ASUS Prime B450 Plus has more USB 3.2 Gen1 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen1 USB-C port/s.1 vs 0
  • 1 more USB 3.2 Gen2 ports
    ASUS Prime B450 Plus 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 B450 Plus 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
  • 1 more PCIe 2.0x16 slots
    ASUS Prime B450 Plus has more PCIe 2.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 2.0x16 slot/s.
    What it is: The number of PCIe 2.0 x16 physical slots on the motherboard.
    When it matters: When you compare older full-length expansion options.

    Importance: LOW

    ASUS Prime B450 Plus has more PCIe 2.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 2.0x16 slot/s.1 vs 0
  • Newer CPU socket
    ASUS Prime B450 Plus 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 B450 Plus 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
  • 2 more PCIe x1 slots
    ASUS Prime B450 Plus has more PCIe x1 slots than the average motherboard (3 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    What it is: The number of PCIe x1 slots on the motherboard.
    When it matters: When you want space for smaller add-in cards.

    Importance: MEDIUM

    Good value: >=2

    ASUS Prime B450 Plus has more PCIe x1 slots than the average motherboard (3 vs 1). The average motherboard has 1 PCIe x1 slot/s.3 vs 1
  • Supports ECC memory
    ASUS Prime B450 Plus 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 B450 Plus supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • 1 more DVI outputs
    ASUS Prime B450 Plus 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 B450 Plus 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 B450 Plus has newer CPU socket than the average motherboard (AM4 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • Broader Windows support
    ASUS Prime B450 Plus has broader Windows support than the average motherboard (Windows 11, Windows 10, Windows 7 vs Windows 11, Windows 10). The average motherboard supports Windows 11, Windows 10.
  • Supports ECC memory
    ASUS Prime B450 Plus supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • 2 more SATA 3 connectors
    ASUS Prime B450 Plus has more SATA 3 connectors than the average motherboard (6 vs 4). The average motherboard has 4 SATA 3 connectors.
  • More flexible PCIe lane configuration
    ASUS Prime B450 Plus has more flexible PCIe lane configuration than the average motherboard (x16/x16/x4/x1/x1/x1/x16 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
  • 1 more PCIe 2.0x16 slots
    ASUS Prime B450 Plus has more PCIe 2.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 2.0x16 slot/s.
  • 2 more PCIe x1 slots
    ASUS Prime B450 Plus has more PCIe x1 slots than the average motherboard (3 vs 1). The average motherboard has 1 PCIe x1 slot/s.
  • 1 more USB 3.2 Gen1 USB-C ports
    ASUS Prime B450 Plus has more USB 3.2 Gen1 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen1 USB-C port/s.
  • 1 more USB 3.2 Gen2 ports
    ASUS Prime B450 Plus 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 B450 Plus has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.

Total
Overall
Platform & Features
Memory
Storage
Expansion
Ports & USB
  • More basic motherboard chipset
    ASUS Prime B450 Plus has more basic motherboard chipset than the average motherboard (AMD B450 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No BIOS flashback support
    ASUS Prime B450 Plus does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    requires CPU/RAM
  • Not suitable for gaming
    ASUS Prime B450 Plus is not suitable for gaming, while the average motherboard is. 86.3% of motherboards are suitable for gaming.
  • No debug LED indicators
    ASUS Prime B450 Plus does not have debug LED indicators, while the average motherboard does. 78.8% of motherboards include debug LED indicators.
  • Fewer BIOS update options
    ASUS Prime B450 Plus has fewer BIOS update options than the average motherboard (UEFI utility, Windows app vs UEFI utility, flashback, Windows app). The average motherboard offers UEFI utility, flashback, Windows app BIOS update methods.
  • 42% lower maximum RAM speed
    ASUS Prime B450 Plus has a lower maximum RAM speed than the average motherboard (2,666 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • Slower M.2 slot interfaces
    ASUS Prime B450 Plus has slower M.2 slot interfaces than the average motherboard (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.
  • 1 fewer M.2 sockets
    ASUS Prime B450 Plus has fewer M.2 sockets than the average motherboard (1 vs 2). The average motherboard has 2 M.2 socket/s.
  • Fewer RAID options
    ASUS Prime B450 Plus 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.
    JBOD excluded from RAID-level set
  • 2 fewer USB 3.2 Gen1 ports
    ASUS Prime B450 Plus 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.
  • 1 fewer rear USB ports
    ASUS Prime B450 Plus has fewer rear USB ports than the average motherboard (7 vs 8). The average motherboard has 8 rear USB port/s.
  • 1 fewer DisplayPort outputs
    ASUS Prime B450 Plus has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
  • 1 fewer total USB connections
    ASUS Prime B450 Plus has fewer total USB connections than the average motherboard (14 vs 15). The average motherboard has 15 total USB connections.
  • Older HDMI version
    ASUS Prime B450 Plus has older HDMI version than the average motherboard (2 vs 2.1). The average motherboard supports HDMI 2.1.
  • 60% lower LAN speed
    ASUS Prime B450 Plus 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.
  • More basic LAN controller
    ASUS Prime B450 Plus has more basic LAN controller than the average motherboard (Realtek RTL8,111H vs Marvell AQtion AQC113C). The average motherboard uses Marvell AQtion AQC113C LAN controller.
  • No Wi-Fi antenna included
    ASUS Prime B450 Plus does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • More basic audio codec
    ASUS Prime B450 Plus has more basic audio codec than the average motherboard (Realtek ALC887 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • 18 dB lower audio SNR
    ASUS Prime B450 Plus has a lower audio SNR than the average motherboard (97 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • No headphone amp support
    ASUS Prime B450 Plus does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • 2 fewer 3.5mm audio jacks
    ASUS Prime B450 Plus 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 B450 Plus 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 B450 Plus has fewer VRM phases than the average motherboard (4+2 vs 10). The average motherboard has 10 VRM phase/s.
  • 2 fewer ARGB headers
    ASUS Prime B450 Plus has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.
  • 2 A lower pump header current limit
    ASUS Prime B450 Plus 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 B450 Plus 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 B450 Plus 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 B450 Plus 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 LAN controller
    ASUS Prime B450 Plus has more basic LAN controller than the average motherboard (Realtek RTL8,111H vs Marvell AQtion AQC113C). The average motherboard uses Marvell AQtion AQC113C 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

    ASUS Prime B450 Plus has more basic LAN controller than the average motherboard (Realtek RTL8,111H vs Marvell AQtion AQC113C). The average motherboard uses Marvell AQtion AQC113C LAN controller.Realtek RTL8111H vs Marvell AQtion AQC113C
  • More basic motherboard chipset
    ASUS Prime B450 Plus has more basic motherboard chipset than the average motherboard (AMD B450 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 B450 Plus has more basic motherboard chipset than the average motherboard (AMD B450 vs Intel B860). The average motherboard uses Intel B860 chipset.AMD B450 vs Intel B860
  • Slower M.2 slot interfaces
    ASUS Prime B450 Plus has slower M.2 slot interfaces than the average motherboard (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 B450 Plus has slower M.2 slot interfaces than the average motherboard (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 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • 1 fewer M.2 sockets
    ASUS Prime B450 Plus has fewer M.2 sockets than the average motherboard (1 vs 2). The average motherboard has 2 M.2 socket/s.
    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

    ASUS Prime B450 Plus has fewer M.2 sockets than the average motherboard (1 vs 2). The average motherboard has 2 M.2 socket/s.1 vs 2
  • No BIOS flashback support
    ASUS Prime B450 Plus 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 B450 Plus does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • More basic audio codec
    ASUS Prime B450 Plus has more basic audio codec than the average motherboard (Realtek ALC887 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 B450 Plus has more basic audio codec than the average motherboard (Realtek ALC887 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.Realtek ALC887 vs Realtek ALC898
  • No Wi-Fi antenna included
    ASUS Prime B450 Plus does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
    What it is: Shows whether the external Wi-Fi antenna is included with the motherboard package.
    When it matters: When the board has Wi-Fi and you want it ready to use right away.

    Importance: LOW

    ASUS Prime B450 Plus does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
Total
Platform & Features
Memory
Storage
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

United Kingdom
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4.6
1939 Reviews
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4.6
721 Reviews
United States
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4.5
1923 Reviews
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4.6
733 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS Prime B450 Plus?

  • Excellent value for the price, frequently cited as a top budget ATX option
  • Highly stable and reliable performance out of the box with Ryzen processors
  • User-friendly UEFI BIOS that is easy to navigate and update
  • Ample fan headers (including AIO pump support) for its price class
  • Straightforward installation process with clear labeling on the board

What customers dislike about ASUS Prime B450 Plus?

  • Poor onboard audio quality, with some users reporting crackling or sync issues with the Realtek chip
  • Minimalist VRM design and heatsinks, making it less suitable for heavy overclocking or high-core count CPUs
  • Limited expansion options, specifically only providing a single M.2 slot
  • Confusing or sparse documentation; some users had to scan QR codes for basic pin configurations
  • Aesthetics are considered 'plain' or 'cheap' by some, featuring vertical SATA ports and dated PCB patterns

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