Specifications: Material: PCB Board. Protocol: M-Key and B+M Key. Input: M.2 SSD Slot, both M-Key and B+M Key M.2 SSD (NVMe, SATA Based). Output: USB 3.1 Type A. Dimension: 115*25*6 mm. Transfer Speed: 10Gbps/ 5Gbps (NOTE: If connect with usb 3.0 type a port, speed will be 5Gbps).