The shell adopts aluminum alloy heat sink design; Excellent heat dissipation performance. Equipped with the latest USB3.2 Gen2x2 master chip, it can support up to 20Gbps transmission bandwidth. The external USB3.2 Gen2 x2 type-C Output Interface supports forward and backward pluggable, with a maximum transmission rate of 2000MB/S. Support hot plug and play. It can be used to Connect PC, Notebook Computer, Smart TV, Intelligent Router and Other Devices. Fully compatible with //Linux multi platform . Supported capacity:4TB External interface:Type-C Transmission speed:20Gbps (USB3.2 gen2*2) Supported hard disk:NGFF+NVME m2 hard disk universal Supported system: Linux, etc. Type:B:Compatible with two different specifications of M.2 2230,2242 Colour:Space Gray Material:Aluminum Alloy Package Contents: 1 * hard disk box 1 * data cable 1 * screwdriver(Colors are random, no specifications accepted) 1 * heat sink(Colors are random, no specifications accepted) 1 * lanyard(Colors are random, no specifications accepted) 1 * screw (Colors are random, no specifications accepted) 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.