I want to be snarky like Mac/Tim/JR can be, but I can't pull it off lovingly so I will refrain.
1) If you have a need for networking switches then this post might be helpful to you, if not; it has no real bearing on day-to-day working of an AVL person as it is more geared for IT people.
2) Please understand the switch type/capabilities, you both have made major assumptions about the capabilities without even looking at it or the price.
3) While true the SG350X are going EOL in favor of the CBS350-8MP-2X series there is no little to no difference besides chassis color. Meaning no, there are not a mountain of these sitting around especially with the price-tag.
4) If fanless was needed/wanted then I would have sought out that switch. Those are great for studios and the like. Beware of inductor whine/HF switching noise. Not aware of any 240w+ POE++ (60w) switches which are fanless.
5) FS has some decent products. But one thing I will not compromise on is security/reliability. I'll stick with CISCO/Mikrotik/Netgear/QNAP switches, thanks. [Side note: after recently listening to a podcast with General H.R. McMaster #1763 I am changing my stance on buying Chinese for nearly all products & for clients.]
QNAP QSW-M2116P-2T2S-US would be my suggestion if you need/want a cheaper switch that is not FS
6) Please stop assuming my specific use-case when one wasn't given. This is the reviews section. Not the lounge.
I wanted/needed CISCO. I don't like noise, I fixed it. Hoping to help someone with a similar problem.