... ,usb products, 4 ports usb hub 4 ports 2) Supports USB 1.1 or USB2.0 3) leather surface features:1) 4 ports ... USB HUB,usb products,4 ports usb hub2) Supports USB 2.0 or ... speed to 480Mbps, medium-speed 12Mbps, low-speed 1.5Mbps. 4) Hot swap support, and easy to use. Applies to ... cameras, audio systems, display, and other input equipment etc. 4 ports USB HUB