Originally Posted by Owterspace
I Think I may have to fill my 140mm holes in my case with these fans, and retire some of my older ones.
Ahem, these are 180mm fan holes you'll be requiring here. IN other words, they both require Gaping Holes bigger than what John Holmes could ever leave behind
That is why in my RV03 case which was built to use these fans can only have these installed because using anything less, needs a complicated adapter to be installed down there. Which I have not got the time to build.