RuiLing 480 Mbps High Speed 10 Port USB 2.0 USB Hubs With AC Adapter Cable US Plug for Notebook Computer Laptop PDA.(Black) 10 USB ports USB 2.0 480Mbps hi-speed. Certified for: Windows Vista, Windows XP, and Mac; Can be powered by external power supply Designed with 10-ports, this compact USB 2.0 high-speed hub is small enough for travel, and capable enough to meet your connectivity needs Connects to scanners, printers, digital cameras, camcorders, speakers, mice, keyboard, external drives, MP3 players and more. Fully compliant with the Universal Serial Bus Specification version1.1/2.0, Supports 480Mbits full speed,USB2.0 version