It must be cooled
I took this fan in double, because after having made the turn my parts which took the dust, I noticed that I had an old motherboard with a I5 3570 and RAM, an old case MicroATX or it needed a alim SFX, also a GTX970 and a SSD and a hard disk, So I wanted to do a crazy little Gamer PC project in the old style but there was no vento to get the air out of the case, and the single vent slot is 6 cm, so I took these 2 fans and they are very quiet and do the job they were made for.