Charge and sync for you iPod shuffle. Top load USB port for easy access. 4 port high speed USB HUB. Supports up to 127 Hi-Speed devices. Port over current protection. Compatible with USB 1 and USB 2. Friendly and ergonomic design. Fully compliant with USB 2.0 specification. Backwards compatible with USB1.1. Maximum data transfer rate is 480mbps. Connects up to 2 devices without a power adapter. Overcurrent protection for individual port. Plug and play. No driver installation required. Indicator light status. Compact and essential for PC users. Type: Splitter Color: Black Usage: for Laptop PC Operating Voltage: 5V Operating Current: 500mA Working Temperature: -20℃ - 75℃ Storage Temperature: -40℃ - 85℃ Transmission Rate: 480Mbps Compatible System: for Windows XP/ME/2000/98SE/98/VISTA/MAC OS 10.2/MAC OS 9.1 Features: High Speed, Plug and Play, 4 Ports Total Length: 55cm/21.65" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 3 x 1 x 4 Port USB 2.0 Splitter