I have a Netgear Switch and a lot of other stuff in my attic. It gets quite hot up there in the summer, the stuff been up there for years and the heat doesn't seem to affect it.
Don't know what I was thinking when I did this. I wish I had located it downstairs. Sometimes, say when there is a power failure, I have to climb up there and reset everything in a sequence. Getting old to be climbing.
Keeping electronics cool is important. When summer is over, I plan on relocating everything downstairs.
Bottom line, if that Netgear been working all these years in that heat, I would recommend their equipment. Don't know the model no., 24 port. It also has a option to rack mount.
(LCD - Sony KDL -52 XBR4) (Receiver - Yamaha RX-A1040)(Blu Ray - Oppo BDP-83) (PS3)( Comcast X1) Speakers (L & R - Paradigm Studio 20) (Center -Paradigm CC-470) (Surrounds & Back Surrounds - Paradigm SA-15R in walls) (Subwoofer 1 - Sunfire HRS-12) (Subwoofer 2 - Paradigm PW-2100)