Better than stock case fans - more airflow, less noise!
This is the first time i've used a noctua product and i am thoroughly impressed by the performance, even if the aesthetics aren't ideal.I purchased two nf-a14 pwm fans to replace stock intake fans (corsair af140l) in a corsair 760t case. The biggest issue with the stock fans is the turbulence noise at 700 rpm and up. The noctua fans are not only quieter at the same speeds, they're as well less objectionably noisy to the ears. The nf-a14 pwm as well runs faster, and while it's measurably louder at 1500 rpm than the stock af140l at 1000 rpm, the former's low-pitched hum is far less annoying than the corsair fan's turbulence noise regardless of speed. The pwm control on these fans is as well far more precise than the dc control the stock fans require (my motherboard allows both on all fan headers).At the same rpm, the nf-a14 pwm seems to move less air with the case's intake filter attached behind the fans, but this is mostly made up for by a broader airflow pattern, and the lower noise levels let me run the fans faster. This matters because my case has negative pressure (more exhaust than intake airflow), and negative pressure is undesirable in a case with filtered intake fans because it results in dust entering through unfiltered holes in the case. By replacing stock fans with premium noctua fans, i am able to add more intake airflow with less noise while reducing the amount of dust entering the case.Noctua will be my first choice for pc air cooling solutions going forward.