rj45 hdmi extender has the following features:

• HDMI Extender is HDMI to RJ45 Extender Adapter works for HDTV, Set-top Boxes, DVD, HDPC, PS4, STB, HOME&Hotel Projector Data Monitoring Center, Large Conference Center.
• HDMI to RJ45 extender transmission FAR DISTANCE,it can be up to 30 meters for 1080p using CAT-6 Cable. The transmission distance limited by using traditional HDMI cable, add this device can be up to 30 meters and promise the high image quality. NOTE If you use CAT 5e cable, doesn’t support distance reach to 30 meters.
• HDMI repeater is compact size (included TX Adapter and RX Adapter) Follow the standard of IEEE-568B. PLEASE KINDLY NOTE THAT the Transmitter and Receiver are connected is extremely important, it wouldn’t work if it’s connected incorrectly
• No Power Supply Needed, Support CAT-5e/6 cable can substitute HDMI cable to achieve long distance transmission. Follow the standard of IEEE-568B.Doesn’t support connect any adapter/hDMI CABLE to our HDMI extender except one RJ45 CAT5E/CAT6 Ethernet cable.
• Support 3D 1080P HDMI1.4 resolution,One pair as a full functional module, no need of setting.Not Support HDCP. Support resolution: 480i/p, 576i/p, 720p, 1080i/p, 1920×120

HDMI Extender 60m Over Ethernet
Allows HDMI signals to be extended over a Coaxial cable (RG59/RG6) up to 60m (394ft)Sturdy surface mountable metal enclosure provides durability and minimizes EMI/RFI noise interference. Transfer Bidirectional Infrared control signal together with the HDMI signal. Transfer Bidirectional RS232 control and bidirectional ethernet signal  signal together with the HDMI signal.
Instead of expensive HDMI cable, use Ethernet cable to connect the HDMI source devices (such as HD camera, Blu-ray, Cable Box etc) to HDMI monitor for longer distance.  By using network routers or repeaters, you will be able to extend your HDMI signal without limit. Connect your HDMI source device to the Transmitter, utilize existing Ethernet structure in your house/office to connect the transmitter to Receiver, then connect your HDTV from a remote location to the Receiver with an HDMI cable. No driver required; Sturdy metal enclosure provides durability and minimizes EMI/RFI noise interference.