Allows you to add 7 USB 3.0 USB ports at one time.5V 2A power Adapter provide adequate power supply and stabilize data transmission. Allows you add high-power consumption devices to this Hub, you can add 7 USB devices to your computer at the same time Supported Devices Support USB device include: USB flash drive, digital camera, hard drive, card reader, Mp3, Mp4, webcam, keyboard, mouse, printer, monitor, tablet, cell phone, Tablets, etc. USB 3.0 5Gbps USB 3.0 transfer rates up to 5Gbps, 10 times faster than USB 2.0, backwards compatible with USB 2.0 / 1.1 Specification & Compatibility LED light display status. Windows (32/64 bit) 8.1 / 8 / 7 / Vista / XP, Mac OS X 10.8.5 to 10.9, Linux 2.6.14 or above. Support hot-swap, Plug &play 2.4GHz wireless devices, MIDI devices and some USB 3.0 devices may not be supported. Try using the host port or a USB 2.0 connection What"s in the Box 1 x ORICO 7 port USB 3.0 Hub 1 x 3.3ft USB 3.0 cable 1 x 5V 2A power adapter 1 x User"s Manual 1 x Warranty card