Complete all-in-one storage kit: PCIe Slimline SAS SFF-8654 adapter card + matching U. 2 NVMe connecting cable; Dual-mode compatible with PCIe 3.0 & PCIe 4.0, full x4 high bandwidth lossless NVMe transmission; SFF-8654 Slim SAS host port converts to SFF-8639 U. 2/U. 3 NVMe solid state drive interface; Gold-plated precision pins + multi-layer EMI shielding eliminate signal attenuation & crosstalk; Standard full-height metal bracket, fits all ATX/MATX desktops, workstations and rack servers