M.2 SSD Enclosure NGFF protocol B Key interface Type-C high-speed interface / reversible blind plugging Mobile storage at your convenience One hard drive enclosure supports two different protocols of M.2 hard drives, allowing you to flexibly handle different hard drive read and write needs Metal shell dissipates heat quickly Aluminum alloy thin shell, fast heat dissipation and stable transmission Born for speed M.2 to USB3.1 Gen1, NGFF protocol, transfer speed: 440+MB/S NGFF 1G file transfer within 3 seconds Product Name: M.2 Dual-Protocol Hard Drive Enclosure Supported hard drive: M.2 solid-state drive Built-in interface: M.2 M-Key. B-Key USB specification: USB3.1 gen2 USB transfer speed: 10Gbps Wiring length: 40cm (The product printed words depending on the batch, but this does not affect use) Color: Grey Material: Aluminum Alloy Package Contents: 1 * M.2 Dual-Protocol Hard Drive 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.