The st12mhdlan hdmireg over ip extender kit includes both the transmitter and receiver and lets you extend an hdmi audio and video signal long range over a gigabit lan network or shorter distances using a direct cat5ecat6 cable connection when connected through a gigabit lan network the same hdmi signal can also be extended to additional displays using st12mhdlanrx receiver units sold separately for a point to multi point installation this versatile hdmi extender offers multiple config