Features of Ultra Mini USB 3.0 High Speed HUB 4 Port: - Third-Generation Fully-Integrated Low-Power VL812 USB3.0 Controller Inside - One Step add 4 Super Speed USB3.0 Ports for any Windows, Mac or Linux Computer - Lightning Speed USB3.0 Ports Rate Up To 5Gbps, 10x Faster of USB2.0 - Plug and Play, USB Bus Powered, No Power Adapter, Driver or Application needed - Unique Slim Size with Integrated USB3.0 Cable Easy for Carry or Travel Performance - Gen 3 VL812 USB3.0 HUB Controller offer Transfer Rates Up To 5Gbps, 10x Faster than USB2.0 allow Transfer Your Files in a Breeze. USB Bus Powered, No Additional Power Adapter is needed - 4x High-Throughput USB3.0 Ports allow to add 4 USB3.0 Port Easily and offer a Reliable Connection Compatibility - VL812 USB3.0 Controller with Latest Firmware offer Maximum Compatibility for Windows XP, 2003, Vista, 7, 2008, Windows 8 32 or 64Bit, Linux kernels 3.0 or Later and Mac. - This ITEM may mot works well with Some 2.4GHz Wireless Adapter of Bluetooth Wireless Mice,Keyboard and Speaker. Attach 2.4GHz Wireless Adapter to USB2.0 Ports of Computer is Recommended.