Features: Aluminum alloy material, the aluminum alloy case increases the heat dissipation area, making it convenient for the hard drives to dissipate heat during operation, effectively protecting your hard drives, making file transfer more stable, and increasing the service of the hard drives. Adopting USB4 TypeC interfaces, supporting Thunderboltcompatible 4, Thunderboltcompatible 3 has a speed 4 times that of USB3.2 and 8 times that of USB3.0. Adopting ASM2464, the high-order main control efficiency is doubled with UASP and TRIM functions, which can reduce CPU load, reduce the number of erasable writes, and achieve faster and more durable speed. Fast transmission speed supports M.2 NVME protocol up to 4TB, without the need for external power supply, making it easy to read massive amounts of data on most hard drives. Supports M.2 NVMe solid disk drives in 2280/2260/2242/2230 sizes. Fully compatible multi platform operating system, suitable for connecting devices such as PC/laptop/mobile phone/smartTV Specifications: Model: USB4.0 M.2 NVMe Hard Disk Case Main control chip: ASM2464 Supported hard disk capacity: support 4TB External interfaces: USB4.0 TypeC Material: Aluminum-alloy Transmission: Support 40Gbps Compatibility: Supporting Thunderboltcompatible 4/3 Size：approx 115x51.4x14.5mm/4.53x2.02x0.57in Types： Standard/ With light & Fan Package Includes: 1 Set M.2 NVME 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!