iClever 4 Port USB 3.0 Portable External Hub/Splitter Box For PC Laptop Computer 5Gbps Features: Hub/Splitter Box. Supports data transfer rates of up to 5Gbps, and is backward compatible with USB 2.0 (at up to 480Mbps), or USB 1.1/1.0 at up to 12/1.5 Mbps respectively. Adds 4 Superspeed USB 3.0 ports to your PC, laptops and tablets (e.g. Microsoft Surface, Ultrabooks and MacBook) so you can add peripherals with ease.