2 x pcie 3.0 x1 slots: Asus Prime B550M-A - AZ Audio. Mainboard ASUS PRIME B450M-A II, SOCKET AM4, M .... PRIME Z590-P/CSM | Motherboards.
Micro-ATX Form Factor AMD B550 Chipset AM4 Socket 4 x Dual-Channel DDR4-4866 (OC) 4 x SATA III | 2 x M.2 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16 Slots 2 x PCIe 3.0 x1
Slot Gigabit LAN Port Supports Windows 11 (64-Bit)
Micro-ATX Form Factor; AMD B450 Chipset; AM4 Socket; 4 x Dual-Channel DDR4-4400 (OC); 6 x SATA III, 1 x M.2; 1 x PCIe 3.0 x16 Slot; 2 x
PCIe 2.0 x1 Slots ...
1 x PCIe 4.0/3.0 x16 slot. - Intel® 11th Gen processors support PCIe ...
2 x PCIe 3.0 x1 slots. * Supports PCIe bandwidth bifurcation for RAID on CPU function.