#3 - Gigabit is future-proofing.newalarm said:1. POE+ seems unnecessary since most cameras are in the 4-7watt range. I don't see what would require POE+ (more watt per camera) in the future, unless i started to need other POE devices that are more power hungry.
2. If I get a POE only switch, can I plug the NVR PC into a POE switch? (seems like dumb question but could not find that anywhere).
3. Seems like most cameras are 10/100. So a gigabyte switch would be overkill. Or is it better to plan ahead?
#2 - yes. POE is negotiated and the NVR would not need the power.
#1 - any PTZ camera would need poe+ (and perhaps some high-end non PTZ's)