1. OCuLink is a high-speed internal and external I/O connector for generation of servers, compatible with T10/ SAS-4 24 Gbps, SFF-8611, SFF-8612, PCIe Gen 3 and Gen 4. 2. M.2 to Ouclink 4i/SFF8612 silver-plated extension cable, 64Gbs, supports PCIE 4.0 X4 GEN4, GEN3. 3. Suitable for converting M.2 sockets into Oculink sockets for small hosts, desktops, , etc., without fixing buckles. 4. The length indicates the cable part, excluding the two ends. 5. Silver-plated cable, aluminum foil shielding, high-speed and lossless. Support PCIE 4.0 data mission, support connection of GPU graphics card, solid-state drive, expansion card, etc., backward compatible with PCIE 3.0. Laptop external graphics card extension cable. Support DOCK-OC5/DOCK-CO6 external expansion dock. Intermediate cable length: about 15cm (is not the total length of the product, it does not include PCB and connector). Colour:Black Material:plastic+silver plated wire Package Contents: 1 * M.2 NVME to Oculink Extension Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.