Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent fan

I got this fan to help cool my Hot cramped AT case for my Voodoo 5 card. It is quiet, I barely notice it's in there, and seems to air it out a bit(hot air from P/S fan is slightly cooler) and I don't get the twitching black screens anymore after an hour of PC use. If your going to get an ATX case(Like I plan to) get these fans, get two, one intake one exhaust. My first impression with Antec is a very good one. They also sell larger fans for full towers, get four fans for the case sold on this site. For AT, just snap it in, for ATX, it comes with four screws. Keep cool!