ASRock B850M Pro RS WiFi AMD motherboard

Socket AM5 micro-ATX board

The ASRock B850M Pro RS WiFi is a micro-ATX motherboard built for AMD Socket AM5 processors. It accepts Ryzen 7000, 8000 and 9000 series CPUs and uses the AMD B850 chipset. The board targets builders who want a compact platform with modern connectivity and solid power delivery.

One PCIe 5.0 x16 slot and a Gen5 M.2

The primary expansion slot runs at PCIe 5.0 x16 with Ryzen 9000 and 7000 series chips, dropping to Gen4 x8 or x4 with 8000 series APUs. The top M.2 socket connects through the CPU at PCIe Gen5 x4 (128 Gb/s) for the fastest NVMe drives. A second slot from the chipset provides PCIe Gen4 x4 (64 Gb/s), and a third chipset M.2 adds more high-speed storage. Four SATA 6 Gb/s ports and RAID 0, 1, 10 support round out the storage options.

Suits compact gaming or workstation builds

This board fits users who need a smaller case footprint without sacrificing high-speed I/O or memory capacity up to 256 GB of DDR5. The 8+2+1 phase Dr.MOS VRM and 6-layer PCB support stable overclocking, while rear HDMI and DisplayPort serve APU graphics. Builders requiring more than two full-size PCIe slots or 10 GbE LAN should look at full-size ATX alternatives.