Features: 1. Standard for oculink SFF 8612 interface, using for Amphenol connector 2. System requirements: for Windows 7, 8, 8.1, 10 or higher; supports MAC system; UEFI2.3.1 or higher 3. Host interface: M.2 (M-Key), used to connect to the M.2 (M-Key) slot on the motherboard 4. Device-side interface: SFF-8639, used to connect NVME SDD solid state drive with U.2 interface 5. Convenient to carry and easy to use Description: 1. Model: PCI-E NGFF Riser Card 2. Type: Adapter Card Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use size: about 2.2 x 8cm Material: PCB colour: As Shown Package Contents: 2 x Adapter Riser Card 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.