Thread: venting blank panels?
This is something I keep thinking about too, something in maybe 3 and 4hp, so you can get a bit of air flow with a couple at the bottom and a couple at the top. Electronics do last better when kept cool don't they?
I'm sure I could make my own but I'm not sure it would end up looking very tidy marked out and drilled by hand!
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.