Review on ARCTIC BioniX F140 - 140mm Gaming Case Fan with PST Technology, Ultra-Quiet Motor, Computer, Fan Speed: 200–1800 RPM - Grey by Bogdan Bogdanov ᠌

Purchased three units up front, as a result, despite their beauty, these coolers offer no advantages beyond their yellow and stiff rubber bands. I set it to 1200 rpm and the air flow is minimal, just like on 120 coolers of the most basic types, and an air hum develops. These coolers are noisy, but those who cannot hear the sound will not recognize it. I opted to disassemble and grease the coolers, however one of them broke as a result. It turned out that the manufacturer lubricates; it's unfortunate that they forgot to add a few drops of oil. As a result, the coolers' lubrication does not make the hum go away; instead, the issue is solely with the poorly designed propellers.