SMAKN&reg; 22*42 mm M.2 NGFF SSD To USB 3.0 External Enclosure Storage Case Adapter High end quality product with sleek case design . USB 3.0 interface. Plug and Play. Material: Aluminum alloy shell. Dimensions: L * W * H: 55 mm * 29 mm * 9 mm, ultra-small size. Only supports 22 * 42mm Specification B KEY M.2 NGFF Interface SSD; M KEY definition (that is, take the PCI-E bus signal) M.2 NGFF not supported.