PCIe 4.0 x16 To 4 Port NVMe-Expansion Card PCI-E 4.0 16xTo SlimSAS 8i x2 SFF8654
3, with Slim sas 8i connector. 1, PCIE X16 full bandwidth 4.0, GEN4 protocol, compatible with gen3\gen4. 2, need your motherboard BIOS support to change PCIE working mode. 4, with 1 in 4 clock split IC.