Cables to Go 7-Port USB 2.0 Aluminum Hub conveniently adds seven high speed USB 2.0 ports to your desktop or notebook computer. The slim form factor saves space while the port placement and hard-mountable metal base keep the hub in place even when several USB devices are connected. The hub easily slides out of the base making it convenient to travel with as well.The 7-Port USB 2.0 Aluminum Hub can be self-powered from the USB port or utilize the included power supply. Add additional hubs to support up to 127 devices. USB-IF certification ensures high speed data transfers up to 480 Mbps. Whether you are downloading or transferring spreadsheets, MP3 files, digital pictures, or video streams- the Port Authority2 7-Port USB 2.0 Aluminum Hub will make connecting several high speed USB 2.0 devices hassle-free.