The ASRock B850M Pro-A is a Micro ATX motherboard for a desktop PC built around the AMD B850 chipset and Socket AM5. Its manufacturer code is 90-MXBR80-A0UAYZ. It supports AMD Ryzen 9000, 8000 and 7000 Series processors.
Four DDR5 DIMM slots provide dual-channel memory support, with capacity up to 256GB and memory speeds up to 8000+ (OC). This gives a system room for memory expansion, with supported speed dependent on configuration.
For components and storage, the board has one PCIe 5.0 x16 slot, one PCIe Gen5x4 M.2 socket, two PCIe Gen4x4 M.2 sockets and four SATA3 connectors. HDMI and DisplayPort outputs and 2.5 Gigabit LAN support everyday display and wired network connections. The 24.4 cm x 24.4 cm Micro ATX format suits a compact desktop build.
