Built-in turbo fan creates a convection system Rapid heat dissipation, cool operation Compliant with USB 4.0 standard, theoretical transfer rate of 40Gbps, actual measured read and write speeds can reach 3000+ MB/s. Fully compatible with more than just 4.0 Supports USB 4.0/USB 3.0/3.1/3.2/2.0 protocols M.2 Nvme 40Gbps Supports M.2 2242, 2260, and 2280 form factor SSDs Product Name: M.2 40Gbps Solid State Drive Enclosure Product Code: M25 Product material: aluminum alloy Supported protocol: NVMe protocol External dimensions: 110mm*51mm*19mm Suitable for: M.2 solid-state drives (2242, 2260, 2280) Supported interface: M-Key External interface: Type-C Transmission rate: 40Gbps Color: As Shown Material: Aluminum Alloy Package Contents: 1*40Gbps USB4.0 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.