Oculink x4 (device) x 2 + Mini 4pin power x 2 connectors PCIe bracket with backplane cage for 2 x M.2 SSDs Built with a full-height PCIe bracket for easy installation Compatible with 2 x M.2 NVMe Gen3/Gen4 SSDs (length: 2242/2260/2280) Supports PCIe 3.0/4.0 x4 NVMe M.2 M key SSDs Interface: 2 x Oculink 4i Anti-vibration springs on the tray ensure secure SSD placement Durable aluminum frame, stainless steel tray, and aluminum front bezel with a keylock for added security LED indicators for power-on (blue) and accessing (blue blinking) status Includes heat thermal pad and aluminum heat sink cover for efficient heat dissipation