Thermaltake A2491 140mm Case Fan - Retail

Comment:
it is just a fan but its really quiet and blows more air it seems than my other 140 top blower. one small detail that i liked is where the screws go in its not one solid hole strait through, theres a gap between the sides that was useful, doesnt matter which way its applied, the other side for the other screw holes can be used with a twisty tie, etc. to strap cables down to it around the edge of the fan mount. that may apply to other fans also, i dont know, but if your looking for cable management this fan helps with that in its own little way. havnt had it long enough to comment on its life span.

Comment:
It does the job well. This fan replaced a 135mm PSU fan that failed prematurely. It' common for a low quality sleeve bearing to fail when mounted facing up next to a significant heat source. I did not have much of a choice when looking at 140mm...but this one is cheap, quiet and reliable, and pushes a good amount of air. though not advertised, it's design keeps it's sleeve-bearing relatively cooler too.