2 NVME PCIE SSD Enclosures. Heat Sink Integrated Giving the Best Ventilation for NVME SSD Running at High Speed. Supports NVMe solid-state drives, direct USB bus power supply, and supports hard drives with a maximum capacity of 8TB. USB Type-C 40Gbps interface, faster reading and writing speed, maximum transfer rate up to 2700+MB/S. Compatible with multiple operating systems such as Windows/Mac OS/Linux. 0.5m Thunderbolt 4 Pigtail Cable (Intel Certified) Ensure NVME SSD Best Performance. Note: Only Supports Thunderbolt 3/4 USB 4.0 Interface. Only Supports 2280 M. 2 NVME PCI-E SSD. Small and Portable Storage, Aluminium Alloy Design. Providing NVME SSD Giving Maximum Theoretical Speed up to 40gbps. Actual Speed Will Vary Depending on the Speed of Your SSD and Device. Thunderbolt 4 Provides Speed up to 40gbps, Allows NVME SSDs to Achieve Peak Performance, 6-7 Times the Sequential Read/Write Speeds of Sata. Plug-and-Play Connection, No Installation Need. Note: Only supports 2280 M. Compatible with Thunderbolt 3/4 USB 4.0 Interface, Back ward Compatible USB 3.2/3.1/3.0/2.0 Interface. TBU405(Screws fixed)/TBU405M1(Tool-free fixed). 1025214mm/1015213.5mm Portable Size. The Aluminum Shell, Thermal Pads, and Corrugated Surface of the ACASIS NVMe Enclosure Provide Maximum Heat Dissipation, Protecting the Ssd from Overheating and Reducing Power Consumption. Single Interface, No Driver Installation, No External Power Supply, Easy to Use, Plug and Play. USB4.0 interface, maximum transmission rate up to 40Gbps. Unique line engineering appearance, slim and portable, meeting your fashion needs. LED indicators show hard drive health status. Active cooling fan + aluminum alloy shell + grid hollow design + thermal conductive silicone pad, four layers of long-lasting heat dissipation to ensure data security. Compatible with multiple systems, no driver installation required, plug and play, no need to wait.