VGA & Audio Extender with fine tuning for near perfect picture quality control. The ST122UTPAL VGA and Audio over Cat5 Video Extender (long range) lets you extend a VGA video signal, as well as the accompanying audio from a single PC over standard 4-pair Cat5 / Cat5e (UTP) cabling to 4 (2 local and 2 remote) monitors. The VGA (and audio) extender is an out-of-the-box solution that includes both the transmitter and receiver, and features a control dial that offers the unique versatility to toggle displays connected to the receiver on and off, and adjust audio volume; plus, the control wheel can be used to help you fine tune your signal by offering RGB (red, green, blue) SKEW calibration, as well as control of gain and brightness. Extending video distances up to 300m (950ft), the transmitter offers an EDID copy features that delivers optimal resolutions and increased compatibility with the remotely located displays, making it a versatile solution for digital signage and point-of-sale applications.