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 tog