[brizzo]

Originally Posted by StirCrazy

here are a few, I am assuming it is a little bigger than 1.5" and more like 40mm

http://search.digikey.com/scripts/Dk...?name=P9700-ND

there are hundres of fans and sizes here.

Steve

StirCrazy has it right! It's most likely 40mm, most commonly I've seen 40mm x 10mm

Sunon make good quality fans, and you can choose how many CFM and RPM (and voltage too!)

http://dkc3.digikey.com/PDF/C083/P2306.pdf

Any sku listed as 'vapo':

http://www.sunonusa.com/pdf/VapoBear...Technology.pdf