I used Cat6 cable.
I would give them 5 stars but they have an indiscernible problem.
I bypassed the wall plate and it worked great.
I made my own cables, they work perfectly.
If you go directly from the "sender" use quality cables to the "receiver" they work great.
This is the review to read and ponder: After failure and frustration trying to get a 50' HDMI run to my garage, I ordered 2 sets of Ethernet cables (and I had some others).
First: all 4 interface kits worked fine, audio and video, when the Ethernet run was short, 2' (I used 2 2' Cat 5 cables for the Balrun kit (4) and one 2' Cat 5 cable for the other 3 kits).
When I set up a 30' Cat 5 run (I only tested the 3 single cable interface sets of course), the Expert Connect (6) kit did not work and both the J-tech (3) and the HongNing (5) kits did work (although the HongNing cut periodically).Next test setup was the dual 50' unshielded Mediabridge ethernet cables (2) (I used only one of these for the 3 single cable interface kits).
The J-Tech kit (3) worked for 20 seconds then died then came back for another 20 seconds and died, etc).Lastly I tested with one 75' shielded Cat 6A cable (1) and this is where I got some satisfaction.
Well, it is garbage unless your cable needs to be the length of a standard HDMI.