Features: Support 40Gbps USB Type-C Interface M.2 NVMe Enclosure. It is also compatible with-Thunderbolt3/4, USB3.2/3.1/3.0 interfaces (Please be sure to use USB4.0 interface or Thunderbolt3-compatible interface to achieve 40Gbps. Backward compatibility will limit the speed.) The M.2 Case- is made of all-aluminum-alloy material, and CNC- technology is used to cut stripes- to increase the heat dissipation area，making the product more stable and safer to use. The 40Gbps M.2 Enclosure compatible with- both M.2 NVMe and Sata- SSD Dual-Protocols Support 40Gbps M.2 enclosure as a mid-to-high-end M.2 solid-state drive enclosure, uses high-quality accessories throughout. Support System Multi-OS, Windows- MacOS-, Linux-, Androids. Plug-play, no drive and power supply required. Specifications: Model: USB4.0 M2 NVMe Hard Disk Case- Main control chip: INT7440/JMS583A3 Supported hard disk capacity: support 4TB External interface: USB4.0 Type-C Shell-material: Aluminum-alloy Transmission rate: Support 40Gbps Compatibility: for 3/4 Size：approx 100x53x13.5mm/3.94x2.09x0.53in Package Includes: 1 Set M2 SSD Enclosure note: Note: NOT Included M.2 SSD, Only SSD Case- Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!