Both protocols can be used The is compatible with M.2 NVMe and NGFF protocols, easily meeting SSD needs in one enclosure Aluminum alloy, drop- and shock- Constructed with an aluminum alloy casing and an ABS inner frame, its shock- design prevents the hard drive from slipping out during drops, ensuring its safety Product Name: M.2 Solid State Drive Enclosure Product number:M9 Supported protocols: NVMe protocol, NGFF protocol, dual protocols Suitable for: M.2 solid-state drives (2230, 2242, 2260, 2280) Supported interfaces: M-Key, B-Key & M-Key External interface: Type-C Transmission rate: 20Gbps Color: As Shown Material: CNC Aluminum Alloy Package Contents: 1* SSD Enclosure 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.