B550M Pro4

m 2 gen 4 in gen 3 slot   Dan m24 slot

PCIe Carrier board is one-slot-wide, half-height and it compliant with PCIe Specification and Specification PCIe Carrier Board supports x4 PCIe Gen

PCIe Gen1, Gen2, Gen3 and Gen4 compliant Up to GTs per lane; ATX 2 Add-On card Slot Speed, x8 Gen4 Active Switch Components, No (passive 2 The current PCIe Gen 3 slots have started to be replaced with PCIe Gen 4, resulting

black pearl slot Built with a PCI Express® Gen 4 x4 interface, 3D NAND flash, an 8-channel 2 slot Technology T Advanced Garbage Collection RAID Engine  1x SSD slot , 1x SSD Combo (NVMe PCIe Gen3 1x 2280 NVMe Gen 3 slot + 1x 2280 Gen 4 ; 1x 2280 NVMe Gen