Running @ 12v and recorded @ 2cm
Coolink SWiF 1201 – 67 db

After conversion the results @ 2m are as follows
Coolink SWiF 1201 – 27 db


12v performance.

Running @ 7v and recorded @ 2cm
Coolink SWiF 1201 – 60 db

After conversion the results @ 2m are as follows
Coolink SWiF 1201 – 20 db


7v performance.

Summary of fan performance
The Coolink SWiF 1201 is a nice performing fan. 12v performance was pretty good. Not too loud and produced very good levels of back pressure. However, i would say that there was a little too much fan whine at this voltage – depending on the user this might not be too intrusive but in a set up aiming for silence it could be an issue.

It’s a different story at 7v as i found it was very quiet while still producing acceptable levels of back pressure – not a great deal but justifiable given the low volume level. There was no fan whine and no clicking from running undervolted. It also span up quite easily at this voltage too.