USB HUB 3.0 4 Ports.

Extra Power Supply Port Design】4 Port Black Powered USB Hub Splitter Expand one of your computer’s USB ports into four with this USB hub 【Extensive Compatible】 The USB 3.0 hubs reverse compatible USB 2.0 and USB 1.1.The USB hub supports multiple systems such as for MacBook Air, Laptop ,iMac, PC,USB Flash Drives, Hard Drive 【Protect External Devices】 the USB hub build in smart chip, overload voltage and instantons current protection fiction to protect the safety of connected equipment and ensures no interference for bluetops and WIFI 【SuperSpeed Data Transfer】 Enjoy the USB hub 3.0 to sync data at blazing speeds up to 5Gpbs fast enough to transfer an HD movie in seconds 【Effortlessly Portable USB HUB】  Plug & Play ,no Installation and Hot Swappable. Ultra slim USB hub splitter is designed to be as portable as possible. Perfect for static use and on-the-go Powered USB Hub Splitter 3.0, which can use expansion cable in more occasions .Advanced Chipset has good thermal design, will not heat even if used for long time. The powered USB hub splitter adapter can save your desk space and expand your devices connectivity! It keeps you away from the trouble of plugging &unplugging repeatedly. Specification: Material: ABS Output Interface: USB3.0*1,USB2.0*3 Input Interface: USB3.0/2.0 Type-A, Micro USB 5V Power Supply: USB Power Supply Cable length: 30cm Indicator: Blue LED Indicator Using tips: ☛ This USB hub not designed to charge devices, can charging but very slowly. ☛ For a stable connection, avoid connecting devices that exceed a total of 900 mA