SUNON MFC0381V1 MagLev FANs 120x120x38MM 4wire

[Laszlo]

Correct me, If I'm wrong, but I think this is a good deal, the seller accepted 8$s/Fan (now I think it can be less) for four items, and even changed the propietary Dell connector to 4Pin PWM. So far I'm satisfied, as even though these fans move a lot of air are really quiet.
SUNON MFC0381V1-Q000-M99 FAN DC12V 0.62A 120*120*38MM 4wire | eBay

 

[BackupProphet]

I just placed a similar fan in one of my server, the connector is very easy to fix so it fits regular Supermicro connectors.
I think mine use some less power, but it is very quiet.

 

[BLinux]

any ideas about CFM and static pressure?

 

[Laszlo]

The closest I got was this catalog (page 74):http://www.sunon.com/index2/uFiles/file/03_products/08-catalog download/Sunon DC Brushless Fan & Blower_(240-A).pdf
I think this is a low static pressure part. (Around 0.3 inch-H2O) On the fan it is stated that the min cfm is 127.
Its Dell part number is YK550-A00. But I have not found anything relevant for this.
Edit: The max rpm is 3000.