4 Port USB Hub: Expanding your single port to 4 USB 3.0 ports, easily connect USB devices to your laptops like mouse, keyboard, USB flash drive, game machines, hard disk drive etc. Note: It doesnt support charging. SuperSpeed Data Transfer: Sync your data at speed up to 5Gbps,10 times faster than USB 2.0,transfer an HD movie or large files in seconds,ideal for transfer music, pictures, movies or videos. Protective Design: Built with advanced chip which avoids overheat,over current, over voltage, short circuit and high temperature, keep stable data transfer performance and device safe. Plug and Play: Just use this USB hub 3.0 instantly with no drivers required. With 30CM extended cable and compact design, more convenient when using in desktop,dispel your concern about too short cable to use. Wide Compatibility: Compatible with Windows 7, 8, 10, XP, Vista; Mac OS X and Higher; Linux; Unix. This USB 3.0 hub reverse compatible with USB 2.0/USB 1.1.