Provides four USB 3.0 ports for additional peripherals. Supports data transfer rates up to 5 Gbps. Capable of fast charging at up to 0.9 A. Sleek, aluminum housing makes this durable hub the perfect desktop or travel companion for Mac or PC. Backward compatible with all USB 2.0 and 1.1 devices. Bus powered with overcurrent protection. Plug and play. Three-Year Warranty