A friend of mine has gotten a quote to install a security system at his lake house. I believe some of the cameras are to be 4K and some 4Mps cameras. I do not have all the details yet but part of the quote says "install Outdoor cat5 cable" (not sure if outdoor rated is needed either...this should mostly be run through attic and eves.) Will 4k cameras work OK on CAT 5 or would they really need CAT6 or better? Also, the NVR is shown only as: "NVR-P 8ch 80 mbps 8xpoe 4k/1080 audio supported". Is 80 mbps anywhere near enough to handle a couple of 4K cameras? I assume that spec is per channel but again, not sure just yet.