VE05AL is a VGA extender designed to use a cost-effective CAT5e UTP cable to carry the signal with stereo audio signal and split the signals for 4 video & 4 audio outputs. Its RX unit has a built-in chainable RJ45 output to connect another chainable RX for more working distance and VGA outputs. It's a optimal solution used in Shopping malls, airports, train & bus stations, boardrooms, and tradeshows...etc.