PCI 3.0 x4 adapter. Support M-key XP941 SM951 PM951 A110 m6e SSD, no applicable B key m.2 NGFF NVMe SSD. Easy to put M-Key m.2 NGFF NVMe SSD (PCI-E standard) in PC. With work indicator light. The standard version supports 2230 2242 2260 2280 NVME M.2 SSD. Specification: Input interface: M-Key M.2 NVME (does not support SATA M.2 protocol). Support specifications: 2230, 2242, 2260, 2280 NVME M.2 SSD Output interface: PCIE X16, X8, X4(not support PCIE X1) Support equipment: Compliant with m.2 NGFF NVMe SSD of PCI-E protocol. Support system: Windows7/8/10/Linux. motherboard: The motherboard chipset cannot be lower than the 9 series. Simple installation: no drivers are required. Colour: black Material: PCB Package Contents: 1 x NVMe M.2 to PCI-E3.0 X4 Riser Card Adapter NOTE: Only supports PCIe x4 x2 NVMe protocol with sizes of 2280 2260 2242 2230 And the support size is 2280 2260 2242 2230 PCIe x4 x2 AHCI protocol(Note: AHCI protocol is not SATA protocol) M.2 NGFF SSD solid state drive. Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.