EV-021X, VGA Extender Repeater, is a character that form a connection link between the preceding (Tx) and the following (Rx) in the Rextron VGA over CAT5 extender system. (EV-12L + EV-021X + EV-02R / Transmitter + Repeater + Receiver). VGA Extender Repeater enables you to transmit VGA signals with the resolution up to 1280 x 1024, featuring common mode noise suppression circuit for superb VGA quality via inexpensive unshielded twisted pair CAT5 cables. The Local Unit EV-12L duplicates the input signal for local use and transmits the VGA signal to a Repeater Unit EV-021X, and again the Repeater transmits the VGA signal coming from the Tx to a Receiver Unit EV-02R.