
This is my first time using pass-through connectors. There are many different ones, I didn't know which one to choose. So I just tried these and they worked fine. The holes are big enough to let real copper wires through. I had to make cables for POE cameras so it was very important that the holes were big enough for the thicker real copper wires. I think the ethernet cable I received was a 23 gauge double wrap cable but yes it worked without any issues. I didn't use the sleeves, they get tight quickly on the back of the dashcam so I didn't use them.

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