I remember looking at Sysracks racks a while back when I was trying to find sound-absorbent enclosed racks (which they do make, though I didn’t get one; wasn’t willing to pay for it, as they come at a very large premium). They were one of the very few companies making them. I don’t think that those particular ones are the sound-absorbent models, but their name stuck in my head.

I got this because it’s almost fully enclosed. Most of the noise comes from an open rear door which this doesn’t have, and an open front door which this sort of has. It’s not very loud when the hvac is set to a reasonable level, even though it’s pulling air through 4 fans on the top.

I have additional sound deadening material if I need to apply it but I’m not there yet.

I’m eyeing 3-5 more 1U servers though so maybe I’ll need to do it.