Never hear about this USB extension before. Sounds interesting but won't work.
I'm working in a Remote control submarine and besides the 4 wires for the camera I need 4 more for a Nintendo nunchuck and maybe more.
This is what I'm doing so far
http://www.jcsantilli.com/rov/rov.html
I used CAT5 for a temporary situation but I'm planing to use something with more posibilities. (still thinking how many cables I need). Probably I'm going to install a compass and who knows what else. I'm not a "electronic guy" so if someone has (cheap ) ideas please let me know.
Tx