Features: USB3.0 high-speed interface, mass data will be fast read to reduce the waiting time. Hardware write protection, after enabling write protection switch, the data in U disk can only be read but cannot be modified, deleted or moved. Lightweight and portable, equipped with triangular drawstring hole, convenient connection with other objects. High-strength PC material, stable and wear-resistant, long service life. Cap structure protects the interface from damage. Specification: : Netac Model: U336 Color: Black Capacity: 16GB/32GB/64GB/128GB/256GB(optional) Material: PC Interface: USB3.0 System requirement: Windows XP/7/8 or above, Mac OS X 10.5 or above, Linux 2.4.x or above Item size: 6.75 * 1.9 * 1.01cm /2.66 * 0.75 * 0.4in Item weight: Approx. 9.3g /0.33oz Packing list: 1 * U disk