This fan receives a 8.5/10 from Futurelooks for its quiet operation and reasonable price.

"ZALMAN’s ZM-F4 cooling fan is a very unique product. For starters, it’s called a 135mm fan, but it’s actually able to mount into most 120mm spaces. That means that you can upsize pretty much any 120mm fan giving you the air flow of something a little larger. Check out the video review below for all you need to know…"



Link: Futurelooks