The st121utpgb vga video extender over cat5 allows you to extend your vga video signal by up to 130 meters 430 feet and connect up to 4 displays 2 local and 2 remote from that single source the st121utpgb is a bundled kit including both a local transmitter and a remote receiver unit offering a complete solution for scenarios in which remote monitor displays are required the local unit features a single vga input as well as two vga outputs giving you the ability to view and split your s