So true! I bought the 48 port POE switch for 4 cameras just because it was cheap. I now have 8 plus decided to direct connect my VOIP, 2 computers, 4 TVs, an extra AP and plans for a few more cameras...Apparently adding cameras can become addicting, much to the annoyance of the wife. But once you see one area of your home, you really start wondering...Hmm, what could be going on at the other side? I may be missing something important like how many times opossums or the neighbors cat pass by.I'll just toss this in: Get a switch with at least twice as many POE (camera) ports as you think you need. Believe me, it is extremely likely that you will find places to add more cameras in the future. And it is nice to be able to just add one here and there as you wish.
This can be true. My SRW248G4P fan noise is "not bad", you can hear it through a wall if you are very close to the wall, but I still would not want it say in my bedroom or living room. Mine is in unfinished basement so not a big deal but that is a definite consideration.Be careful purchasing old enterprise POE switches, some of them are huge power hogs and sound like a jet engine running 24/7.