UGREEN USB 2.0 High Speed 4 port Hub allows you to connect multiple USB devices to a single USB port. Then you connect your keyboard, mouse, camera, printer, PC fans etc on your PC at the same time. It is USB 2.0 standard, and offers data transfer rate up to 480 Mbps. 80CM length convenient to extend your USB devices to your desk. Specification 1. Add 4 USB 2.0 Hi-Speed ports; 2. Fully Compliant with USB 2.0 Specification; 3. Supports up to 127 Hi-Speed devices; 4. Backwards Compliant with USB 1.1; 5. Supports data transfer rate at 1.5/12/480 Mbps; 6. LED light design; 7. Plug & play, no additional drivers required; 8. Additional DC-jack is optional for power-hungry devices. Important Note This USB 2.0 Hub is mainly designed for data syncing, NOT for charging purpose. Maximum current from usb 2.0 ports is 500mA.