USB Repeater over Cat 5 Cable - Extends keyboards and mice up to 165ft - USBFireWire.com

USB Repeater over Category 5 Cable
The USB Rover 1650 and 2650 are commercial grade products designed for end user applications. They provide all the flexibility of extended range USB in a ready-to-use package. The USB Rover series are optimized for applications where one device, such as a keyboard or mouse, must be operated remotely. The USB The single port provides support for a single remote device or hub, whereas the dual port can be used with two devices, such as keyboard and mouse.

Further Explanation...
USB Rover products are composed of two separate units: the Local Extender (LEX) and the Remote Extender (REX). Conventional USB cables are used to connect the LEX unit to the host computer and to connect the remote USB device to the REX unit. Category 5 UTP cabling is used to connect the LEX and REX units over a distance of up to 50 meters.
The USB Rover 1650 is powered from USB and delivers enough power at the remote unit to drive most USB devices.

Compatible with standard devices
USB Rover products operate over standard Category 5 UTP cable (the same wiring used in Ethernet). The technology behind the product requires no additional software for either the computer or the target devices.