Support M Key(NVMe Protocol) / M&B Key (both NVME and Protocol) SSD, not compatible with B Key SSD. (included cooling vest and thermal pad) Built-in Metal cooling vest,silicone thermal pad and aluminium body, heat dissipation is fast. ( 5Gbps Model is not included cooling vest) Tool-free,Easy to assemble.Open and lock the case with one click to prevent SSD from slipping out Support UASP, TRIM, SMART, 70% faster than conventional USB 3.1 read speed, 40% faster write speed, automatically identify errors, file data security Compatibility SSD size:2230/2242/2260/2280 Hign-concerned Chemical:None Supporting Hard Drive Capacity:4TB Compatible SSD Size:2230/2242/2260/2280mm Color: As Shown Material: Aluminum Alloy Package Contents: 1 * M2 NVMe NGFF 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.