1、High Speed Transmission: The SSD enclosure is compliant with USB4.0 standard, theoretical transmission speed of 40Gbps, measured peak read and write speed up to more than 3000MB/S. 2、USB 4.0 Design: USB4.0 is the current ultra high speed universal port protocol, 2 times faster than for Thunderbolt 2, 4 times faster than USB 3.1, and 8 times faster than USB 3.0. 3、Metal Casing: This SSD enclosure is made of aluminum alloy casing, CNC forged, anodized process, further enhance the heat dissipation ability by lengthening and thickening. 4、Support 4TB Capacity: The M.2 SSD enclosure supports up to 4TB capacity hard disk, expanding storage more conveniently. It can easily store all files, documents and media. 5、Universal Compatibility: This solid state drive enclosure is compatible with for Thunderbolt 3 4 and supports type c USB 3.2 3.1 3.0 2.0, for Windows, for Linux and for OS X systems. Item Type: SSD Enclosure Material: Aluminum Alloy Support Hard Drive: M.2 NVME 2280 Transfer Rate: 40Gbps Maximum Capacity: 4TB Smart Sleep Mode: Support Support Interface: Compatible with for Thunderbolt 3 4, Type C Compatible with USB 3.2 3.1 3.0 2.0 Compatible Systems: For Windows, for Linux, for OS X 1 x SSD Enclosure 10 x Thermal Pads 1 x Strap Buckle 1 x Screwdriver 1 x Data Cable 10 x Stickers