USB 3.0 Hub 7 Port Extended Charger Adapter High Speed Multi USB Power Hub

powered USB 3.0 hub Every port with independent control swith Every port has LED power light Can be driven 500Gmobile hard disk without external power supply Backflow prevention circuit design,in order to prevent electric current flow back to the device Automatic switching between self-powered and bus-powered mode Supports Plug&Play High Compatibility This hub is USB splitter 3.0 for keyboard, wireless mouse, HDD, camera, good USB 3.0 hub for PS4, for Xbox, for MacBook Pro, for Surface Pro, for iMac System Compatibility This powered USB hub compatible with most Windows 10, 8, 7, Vista, XP, Mac OS X, Linux (kernels 3.0 and later) How to use hub ! Easily add 7 USB 3.0 SuperSpeed ports to your PC and enjoy data transfer rates of up to 5Gbps for faster sync times. The Power adapter ensures stable data transfer.when you connect the Large capacity hdd or other Large Power devices, you may needthe power adapter to let it work, because USB port have no enough power to drive it, thank you ! the power adapter can not be used alone, such as the picture shows.