CPU Support: AMD AM4 Socket CPUs. Form Factor: microATX, 9.6" x 9.6" (24.4 cm x 24.4 cm). 1 x M.2 Socket 3 with M Key (2242/2260/2280/22110) supporting PCIe 4.0 x4 and SATA. 1 x M.2 Socket 3 with M Key (2242/2260/2280) supporting PCIe 3.0 x4 and SATA.