Features: The aluminum alloyshell increases the heat dissipation area, facilitating the heat dissipation of the hard drive during operation Effectively protecting your hard drive, ensuring more stable file transfer and increasing the lifespanof your hard drive. Supports 2.5inch U2 hard drive, does not support 2.5inch/3.5-inch SATA (serialport). The hard drive case is easy to carry and is very suitable for travel and business work Provides fast and efficient charging for laptops, phones, and more. No more messy wires! Specifications: Material：Aluminum alloy Supports 2.5inch U2 Hard Drive Box Size:approx 15.4x10.3x5.1cm/6.06x4.05x2.01in Package Includes: 1PC U.2 Hard Drive Base note: Does not support 2.5inch/3.5inch SATA (serialport) Due to the problems of lighting effectsand shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.