Geffen's USB 2.0 LR extends high-speed USB devices over a single CAT-5e cable, up to 330 feet/100 meters. The compact USB 2.0 LR Sender/Receiver units install in minutes and support USB versions 1.1 and 2.0 - essential for high-performance applications such as digital imaging and interactive gaming. The two-port USB 2.0 hub that is built into the Receiver unit is ideal for remotely accessing laser printers, scanners, external hard drives, CD/DVD burners, flash drives, and standard resolution web cams. Applications such as Remote Desktop (keyboard/mouse) extension, security, industrial control, digital signage control, and scientific data acquisition are all made possible thanks to EXT-USB2.0-LR's universal