Raspberry pi 3 as nvr

[Soarin]

Okay I'm not going to explain it all but the jist is, I bought a cheaper camera system and the nvr is crap so I'm returning it. Zosi brand if you want to know.

Anyways my pi 3 is laying around not being used so I was thinking of using zoneminder and 4 mid-range cameras. Thinking the reolink or amcrest Poe ones in the 60 range. I have a 2 tb HDD I just got because the zosi system didn't have one with it like it was supposed to work Amazon gave me a 50$ credit and I got a 2tb seagate.

So I guess my question is, if I am just recording and not watching them 24/7 can a pi 3 run 4 cameras? I know I'll need a Poe injector,which is fine.

The cameras I'm looking at are these
Reolink
Amcrest
Sv3c
Sv3c dome