這個好像也是德國的風扇，
不過真的不便宜，
一顆要20塊美金。



TECH NOTES:
12v., 1500 RPM, 19.5 CFM, 12 dBA, 4 Pin power connector.

This is a sleeve bearing based fan - so it's incredibly quiet. Long known as makers of some of the best manufactured and quiet fans available, Papst has dominated the market for several years.

If you need quiet - this fan can't be beat. Ideal for use with an Alpha PAL8045.




Dimensions:

80mm H x 80mm L x 25mm W

來源：http://www.plycon.com/papst80.htm