I've used some of the UbiGear connectors that are ironically recommended for purchase with this product. They work great on 10-15 other cables I've installed in the last month. However, as others have correctly pointed out, I've tried crimping the terminals on this wire about 12 times and it just doesn't work. Too bad, because otherwise it looks like a really strong double-jacketed wire. But in my case it's pure garbage, because my tester takes a maximum of 3 wires. I have no idea how others got it to work.