Summary: I bought five of these for a case I built about four years ago, which has run nearly nonstop. One of them failed after about two years of use, but the other four are still running strong. Great lifetime for the cheap price, as expected from Thermaltake.
Summary: Used as an intake fan at the front of my computer case. This fan manages to pull a LOT of air through a tiny opening, runs silently, and looks really cool glowing red. Didn't like the rubber mounting pegs, as they couldn't seem to hold the fan in place effectively.
Summary: These fans work wonderfully. I bought this one and the identical 120mm and have been very pleased by both. They aren't silent but they are quiet and I never really notice them running. The color of red is a nice true red, not orange-ish like some red leds.
Summary: There is something wrong with the specs. They can't be 31 dba! I have two installed and they are very quiet. The LEDs are also very bright, which is good if you are looking for a more dramatic effect in your case. I have a fan controler feeding them at 1000 rpm and I hear nothing!