USB 3.0 Hub Ultra-Slim Data 4 Port USB Splitter 3.0 The thin & lightweight design makes the 4-port USB 3.0 hub a great travel companion to expand your laptops USB 3.0 port into 4, add up to 4 devices. Also backwards compatible with USB 2.0/1.1 products. Wide CompatibilityUSB 3.0 port USB Splitter applies to USB-A Laptops, Stable and SafeMulti shielding to ensure stable transmission, no interference, and no delay. Over-voltage, over-current protection, ensure the safety of your data and devices. Cable length: Approximate 15cm Size:754010mm Transmission speed: 5Gbps Power is derived from the PC USB port (5V). This maybe insufficient for several high powered devices like phone/tablet charging, external hard drives, keyboards, printers etc. This can only be used with PC USB ports.