Yeah.<BR><BR>Different networking equipment takes different amounts of rack space. When you buy something (router/server/etc), it'll say 1U or 2U on it. The largest I think being 4U. That's 4 times the 1.75" Oli mentioned...<BR><BR>I wonder though - why do you need this unless you're ordering networking kit. In which case, I think you're going to need to ask a lot more questions than what a rack unit is...!<BR><BR>Craig.
"The largest I think being 4U."<BR><BR>Oh, dear - that isn't the largest. We had some IBM servers at the dot-com I worked at. Some mammoth f*ckers. They were probably 18"-24" tall.<BR><BR>And, we had a backup tape-drive jukebox. It was about the same size.