One of mine was a Focusrite (see pic below), but mine would get so hot that I thought it was going to catch on fire!
My favorite was the Event Layla24 that you can kind of see at the bottom of this rack. π
There's a good bit of evidence floating around that, except in the case of a HUGE stadium screen, humans can't see the difference between 4k and 8k. Yet they're coming out with TV's, videos and, even worse, video games in 8k! Go figure!