Write protection function: After the write protection function key is turned on, the data in the hard disk cannot be modified or deleted, and the entry of viruses is prevented. Intelligent temperature control fan: Built-in intelligent fan. Double anti-skid pads are stable and shock-: The base anti-skid pads can be stable and shock- during data mission, effectively protecting the hard drive from damage. High-density aluminum alloy cooling fins. Increase the contact area between the heat dissipation fins and the air, effectively improve the heat dissipation effect, and quickly take away heat. Plug and play & strong compatibility: Suitable for M.2 SSD solid state drive, support most operating systems in the world such as for /for /for Linux. Widely compatible with M.2 NVMe/ PCle SSD in M Key in sizes 2280, 2260, 2242, 2230. Hign-concerned Chemical:None Supporting Hard Drive Capacity:8TB External Interface:USB Internal Interface:IDE Size:1.8inch The product appearance and printed words depending on the batch, but this does not affect use. Type:20Gbps Colour:As Shown Material:ABS Package Contents: 1 * M.2 NVME SSD 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.