1U disk is a USB 2.0 interface, compatible with USB 2.0 and 1.1 ports, it can be used to store different files to meet the needs of daily use. 2Suitable for storing data such as important files, pictures, music, videos and software, fast transmission will help you save time. 3Mini size, metal keychain design, allows you to easily connect the USB flash drive to the key or lanyard for easy carrying. 4Supports plug and play, no software installation is required, just simply plug into the USB port of a computer or other device. 5Compatible with most systems, such as for Window2003/XP/Vista/7/8/10/OS X/Linux. Item Type: Flash Drives Material: Metal + ABS Interface: USB2.0 (Compatible with USB 1.1) Supported Operating System: for Window2003/XP/Vista/7/8/10/OS X/Linux Applicable Equipment: Computer, Car, BT Speaker, TV and Other Devices That Support USB Expansion 1 x USB Flash Drive 1 x Keychain