Provides 4 SuperSpeed USB 3.0 ports for additional peripherals; Supports data transfer rates up to 5 Gbps; Capable of fast charging, up to 0.9 amps per port with included power adapter; Backward compatible with all USB 2.0 and 1.1 devices; AC/bus-powered with overcurrent protection; Compact size ideal for both desktop and mobile use; Plug and play–Windows(R) and Mac(R) compatible; 3-year warranty; Includes AC adapter and instructions;