PCIe 4.0/3.0 x16 interface, compatible with PCIe x8 and x16 slots, support data transfer rates up to 256 Gbps

Asus Hyper M.2 x16 Gen 4 Card (PCIe 4.0/3.0), Supports four NVMe M.2 Devices & PCIe 4.0 NVMe RAID and Intel RAID-on-CPU