ASUS · Motherboard

ASUS PRIME B850M-A-CSM

AM5 · B850 · Micro ATX · DDR5

Specifications

From Icecat[1]
Socket
AM5
Chipset
B850
Form factor
Micro ATX
Memory
DDR5
Memory slots
4
Max memory
256 GB
Max memory speed
8000 MT/s
x16 slots
1 x PCIe 5.0, 2 x PCIe 4.0
M.2 slots
3
SATA ports
4
Wi-Fi
No
ECC
ECC & non-ECC

Sources

  1. Icecat (Specs Icecat, provided as is) · checked Oct 19, 2026

Specs last checked Oct 19, 2026. Spotted a mistake? Tell us and we'll fix it.

Will it fit your PC?

Check this motherboard against your CPU and motherboard.

Check compatibility