The ST124UTPEA VGA Video Extender over Cat 5 with Audio simplifies the implementation of digital signage solutions by allowing a single VGA source and corresponding audio to be broadcast to multiple displays at up to 300m (950ft) away over standard Cat 5 or better UTP cabling. Consisting of the transmitter unit only, this product requires a single receiver unit per remote display that you are connecting. The VGA extender offers the option of using our STUTPEALR receiver unit. or the STUTPRXWLA wall-plate receiver. For even more versatility, you also have the option to expand the amount of remote displays in your setup by adding the STUTPEA4X VGA & Audio over Cat 5 Line Splitter to your setup multiplying the number of potential displays by four - allowing your VGA and accompanying audio signal to be broadcast to up to a total 16 displays. Backed by a StarTech.com 2-year warranty and free lifetime technical support.