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ATX motherboard in matte black with grey heatsinks and yellow TUF accents

ASUS

ASUS TUF GAMING B850 PLUS WIFI AMD motherboard AM5 14+2+1 80A 2.5G

SKU CH-9K6A-DR5QZ

AM5 motherboard with 14+2+1 80A power, four DDR5 slots up to 192 GB, dual PCIe 5.0 M.2, 2.5G LAN and Wi-Fi 7

  • Form factorATX
  • Memory slot countDDR5
  • Max supported RAM192 GB
  • Memory channelsDual Channel
  • Width and length12.0 in × 9.6 in
  • Windows 11 support(22H2 & later)
  • Stable CPU power from 14+2+1 80A phases
  • DDR5 memory overclocked to 8000+ MT/s via AEMP
  • Enlarged VRM and M.2 heatsinks keep temperatures low
  • 5G wired plus WiFi7 tri-band up to 2.9Gbps
  • Rear USB 20Gbps Type-C and three USB 10Gbps ports

ATX DDR5 platform for Ryzen 7000/8000/9000

This ATX motherboard uses the AM5 socket and supports AMD Ryzen 7000, 8000 and 9000 series processors. Four DDR5 slots run in dual-channel mode and accept up to 192 GB of memory. The 14+2+1 power stage design rated at 80 A per stage delivers stable current for high-core-count CPUs.

Power delivery and cooling in a standard ATX build

The 8-layer PCB and ProCool connector work with an enlarged VRM heatsink, multiple M.2 heatsinks and a PCH heatsink to manage thermals. Fan headers provide monitoring of several temperature sources. Dual M.2 slots with PCIe 5.0 support add fast storage without using PCIe expansion slots.

Memory headroom and connectivity limits

AEMP profiles can push DDR5 beyond 8000 MT/s when the memory modules and CPU allow it. The board tops out at 192 GB total capacity. Networking includes a Realtek 2.5 GbE port and Wi-Fi 7 2x2 tri-band radio reaching 2.9 Gbps. Rear I/O supplies one USB 20 Gbps Type-C, three USB 10 Gbps ports and one front-panel USB 10 Gbps Type-C header.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $249.99
Typical for this category: the median of 1,906 items is $224.49.

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Specifications

Product
Brand nameASUS
Model nameTUF GAMING B550M-PLUS WIFI
Memory
Memory slot countDDR5
Max supported RAM192 GB
Memory channelsDual Channel
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 support(22H2 & later)

Questions about this item

What power limit does the 14+2+1 80A VRM hit first under sustained load?

The 14+2+1 phase VRM uses 80A power stages on an 8-layer PCB with ProCool connectors to deliver stable current for Ryzen 9000/8000/7000 series CPUs during extended workloads.

How loud or hot does the board get when running all day with the VRM and M.2 heatsinks?

Enlarged VRM heatsink, multiple M.2 heatsinks and PCH heatsink combine with intelligent fan control monitoring several temperature sources to maintain stable thermals during continuous operation.

Which DDR5 memory kit do I need to reach the 8000+ MT/s AEMP overclock?

Four DDR5 slots support up to 192 GB dual-channel; AEMP technology enables 8000+ MT/s (OC) with compatible Ryzen processors and suitable DDR5 modules.

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