Hi, I am currently looking for ways to make some wiring harnesses for my controllers (ray wu 27 channel). After looking at the 8+ core wires available and there prices, I would like too know if I could use cat 5 cable for this, connecting to D sub connectors either end. As cat 5 is 8 core, I would be looking to run 6 (-) and 2 (+) meaning there would be 1 common positive for each 3 channels. This is to run at 30v for big w strings. Most of the channels the total current will less then 100mA, and from my understanding this is ok as each wire in the able can have upto max of 1Amp. So will this work? As cat 5 cable is a lot cheaper then other multi core cable.