Basic InformationSupported CPUAMD Ryzen 5000/4000G Series & AMD Ryzen 3rd Generation ProcessorsChipsetAMD B550BIOS256 Mb Flash ROM, UEFI AMI BIOSForm FactormATX Form Factor9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )Expansion SlotsPCI3rd Gen AMD Ryzen Processors1 x PCIe 4.0 x16 (x16 mode)3rd Gen AM..