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The Verdict

The ASUS TUF Gaming B550M-PLUS is a performance-first micro-ATX board that delivers premium power delivery at a mid-range price. Its 8+2 DrMOS power stages and military-grade components provide the thermal stability needed to reliably run high-end Ryzen 5000 chips. Users consistently praise the 2.5 Gb Ethernet for lag-free gaming and the BIOS FlashBack feature, which simplifies setup by allowing firmware updates without a CPU installed.

The primary trade-off is the lack of a front-panel USB Type-C header, which may render the Type-C port on modern cases non-functional. You are also restricted by the limited expansion slots inherent to the compact mATX form factor. However, these drawbacks are easily overlooked when weighed against the superior VRM cooling and PCIe 4.0 capability. For builders seeking a rugged, no-nonsense foundation that prioritizes core performance and longevity over connectivity frills, this motherboard remains a best-in-class value.

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Model90MB14A0-M0EAY0—PRIME B550M-A WIFI IIPRIME B550M-K WIFIB550M STEEL LEGENDPRO B550M-PB550M PRO-VDH WIFI
M2 SlotsM2 Slot x 2M2 Slot x 2M2 Slot x 2M2 Slot x 2M2 Slot x 1M2 Slot x 2M2 Slot x 2
BrandASUSASUSASUSASUSASRockMSIMSI
Ethernet2.5 Gb/s2.5 Gb/s1 Gb/s1 Gb/s2.5 Gb/s1 Gb/s1 Gb/s
Socket TypeAM4AM4AM4AM4AM4AM4AM4
Form FactorMicro-ATXMicro-ATXMicro-ATXMicro-ATXMicro-ATXMicro-ATXMicro-ATX
ChipsetB550MB550MB550MB550MB550MB550MB550M
Memory TypeDDR4DDR4DDR4DDR4DDR4DDR4DDR4
GPU PCIePCIe 4.0PCIe 4.0PCIe 4.0PCIe 4.0PCIe 4.0PCIe 4.0PCIe 4.0

About this product

  • Enhanced power solution. 8+2 DrMOS power stages, ProCool connector, military-grade TUF components, and Digi+ VRM for maximum durability
  • Comprehensive cooling. VRM heatsinks, PCH fanless heatsink, M.2 heatsink, hybrid fan headers and Fan Xpert 2+ utility
  • Made for online gaming. 2.5 Gb Ethernet, TUF LANGuard and TurboLAN technology
  • Realtek S1200A codec. Pristine audio quality with unprecedented 108 dB signal-to-noise ratio for stereo line out and 103 dB SNR for line in

Specifications

Brand
Asus
Model
90MB14A0-M0EAY0
Form Factor
Micro-ATX
Memory Type
DDR4
Socket
AM4
Chipset
B550M
M2 Slots
M2 Slot x 2
GPU PCIe
PCIe 4.0
Max Memory
128 GB Max Memory
Brand
ASUS
Ethernet
2.5 Gb/s
Width
1.574803148 Inches
Height
9.6062992028 Inches
Depth
9.6062992028 Inches
Weight
1.763698096 Pounds
Colour
Black
Released
2021-03-01T00:00:01Z
Part number
90MB14A0-M0EAY0
Manufacturer
ASUS
EAN
4718017623544
GTIN
04718017623544

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