These BJC Series-3A Active HDMI Cable are designed for applications where the full 18.0 Gbps bandwidth is needed to run for 20 feet or more,  These cables, made for us by Elka International in China, use a boost/EQ chip specifically designed for the maximum 18 Gig bandwidth permitted under HDMI 2.0, and are powered from the HDMI socket (so no need for an external adapter). The Series-3A cable is "directional" in that it is designed to take the signal from one end and amplify and EQ that signal at the other, so it's important to be sure to hook it up in the correct direction! These cables are CL2 rated for in-wall installation, and are certified "High Speed With Ethernet."

I am selling as I no longer need a long HDMI cable run.  New purchase price was $85 plus shipping.  I am selling for $45 plus shipping or best offer.