Review on VIVO Red 1000ft Bulk Cat5e Ethernet Cable, CCA 🔴 Wire, 24 AWG, UTP Pull Box, Indoor Network Installations, CABLE-V001R by Tim Burns

.but I didn't pay attention to that when I bought it. I thought it was copper wire, but it's not. It's aluminum with a thin layer of copper on the outside. Therefore, the resistance is much higher than the Ethernet specs allow, and when I feed a 10m twisted pair with +12V and another pair for ground, I measure 10.05V at the other end. So it doesn't do what I need. Make sure you buy solid copper wire. But you can object that this is stated in the description and my fault for not paying attention. TRUE. true, but it's still a very bad ethernet cable.