Versatile connection: This adapter card is a PCIE to Oculink expansion card that allows you to expand the PCIE slot to the Oculink SFF-8611 SFF-8612 interface. It provides a convenient connection for the U.2 SSD solid state drive in the server, enabling efficient data mission and storage expansion. Compatible with PCIE slot: This PCIE X4 to SFF-8611 expansion card is designed for PCIE slots and supports PC1-EX4/X8/X16 interfaces. It provides greater flexibility to adapt to different server configurations and expansion needs. High-speed interface: This NVMe SSD adapter uses the SFF-8612 interface to achieve high-speed data mission and meet the needs of high-performance server environments. It enables fast and reliable access to your connected devices and promotes efficient data management. Supports SFF-8611&8612 to SFF-8639 U.2 SSD. Simple and easy to use, plug and play, no additional driver required. Interface: OCulink SFF-8612 Support: Support PCle4.0, backward compatible with PCle3.0&PCle2.0 System:for os//Linux Color:Black Material:PCB+Metal Package Contents: 1 * PCIe To SFF-8611 Adapter 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.