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ATX motherboard in dark finish with silver heatsinks and multiple expansion slots

ASUS

ASUS PRIME B550-PLUS AM4 AMD motherboard

SKU CH-V60G-5FX7M

ATX board for AM4 CPUs with PCIe 4.0, dual M.2 slots, USB 3.2 Gen 2 Type-A and Type-C, VRM and PCH heatsinks, Fan Xpert 4, and addressable Gen 2 RGB header

  • ProcessorAM4
  • Form factorATX
  • CPU socketAM4
  • Supports AMD Ryzen 5000 series CPUs with AM4 socket
  • PCIe 4.0 enables ultrafast connectivity for storage and graphics
  • Dual M.2 slots provide high-speed storage expansion options
  • Comprehensive cooling with VRM heatsinks, PCH heatsink and Fan Xpert 4
  • Aura Sync RGB with addressable Gen 2 header for lighting control

AMD B550 ATX motherboard for AM4 CPUs

The ASUS PRIME B550-PLUS is an ATX motherboard built around the AMD B550 chipset and AM4 socket. It supports 3rd Gen AMD Ryzen processors and Zen 3 Ryzen 5000 series CPUs, though a BIOS update may be required for the latter. The board targets builders who want a standard-size platform for current-generation Ryzen CPUs.

PCIe 4.0 support with dual M.2 slots

This board delivers PCIe 4.0 connectivity from the CPU, enabling faster graphics and storage throughput. Two M.2 sockets are provided for high-speed SSDs. The chipset also supplies SATA 6 Gb/s ports for additional drives, while a 1 Gb Ethernet controller handles wired networking.

Suits mainstream Ryzen builds needing PCIe 4.0

The feature set fits gamers and general-purpose users who need PCIe 4.0 graphics and storage on a full-size ATX board. Builders requiring more than two M.2 slots, integrated Wi-Fi, or a smaller form factor such as micro-ATX should look at other options.

How it compares

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

Price $79.99
Cheaper than about 83% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model namePRIME B550-PLUS
Processor
ProcessorAM4
CPU socketAM4
Size & build
Form factorATX

Questions about this item

How does the B550 chipset affect performance once the board is in a real machine?

The B550 chipset provides PCIe 4.0 lanes for the primary graphics slot and one M.2 socket, so a Zen 3 Ryzen 5000 CPU can use full-speed 4.0 bandwidth on those devices.

What interface standard caps the dual M.2 slots in practice?

Each M.2 slot runs over PCIe 4.0 x4 from the CPU, so the practical ceiling is the 4.0 x4 link speed of the installed Ryzen processor.

What physical space and mounting points does the ATX form factor need?

The board measures standard ATX dimensions and uses the nine-hole ATX screw pattern, so it fits any case with ATX standoffs and an ATX I/O shield cut-out.

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