I'm looking for a switch with at least 12-16 ports, Gigabit that supports Power over Ethernet on at least 4 of it's ports that can be rack-mounted (19") and it ideally is fanless or has very low noise.
What I found so far is the "Cisco Catalyst C2960L-16PS-LL" but it is rather expensive, also in my area I have either wait 4 weeks on it or pay 150 USD more to get it in two days. Pro: it is fanless.
Then I also found the Unifi 16‑150W - it has 1 fan but most people tell that the fans never go on even with 4-6 PoE devices attached. Only in rare occasions the fans turn on to cool the unit down a bit.