The B130-202A VGA with Audio over Cat5/Cat6 Extender Kit allows you to extend two 1024x768 VGA video signals + Stereo Audio up to 500 ft., over ordinary Cat5e cable, from a single VGA+Audio source. The Transmitter / Receiver kit also features two local VGA HD15 ports, allowing you to connect up to four VGA monitors, two local and two remote. Compatibility issues can occur when EDID information is not properly communicated between the source and the display. The B130-202A includes an EDID copy feature which stores a monitor's EDID information in the transmitter and sends it to the source, ensuring optimal compatibility. Supports all operating systems, and is plug-and-play...no software or drivers are required.