This device allows a PC display to be extended via an existing network (LAN) A software driver is loaded onto a networked PC which converts the display data to IP packets these are transferred across the network to the LAN extender & it provides an HDMI output at the remote network location. Up to 4 extenders can be connected to the network so you can transfer video & audio to 4 locations on the LAN Set up the extender as follows:- Step 1: Install the driver onto your networked PC Step 2: Plug the HDMI extender into the network at the display location & connect its HDMI output into the display Step 3: Search for the HDMI extender in the software on the PC & connect to it. Specification: HDMI Over Ethernet Extender Extend an HDMI signal via a LAN network Utilise existing cabling for lower installation cost Maximum display resolutions up to UXGA (1600x 1200) & Full-HD (1920x 1080) Supports clone & extend display modes Up to 4 units can be used on one system USB (Universal Serial Bus) Socket for local HDMI extension Supports Win XP/ Vista/7/8 & Mac OS 10.4-6