So far so good ran today for 20 minutes and the fan came on when it needed to.This fan looks like it might be what you guys need.You can choose a connector. buyextras.com is the website.They have 12V also
Sunon 30 x 30 x 6mm DC 5V Magnetic Levitation Fan
This Sunon fan actually use magnetic levitation to "float" the spinning fan blade in a magnetic field to dramatically reduce friction, wear, and heat; making these fans run cooler, quieter and last longer than conventional fans. Ideal for use in any mission critical application, in applications where minimal fan noise is desired.
For Notebook Replacement Fans
Specifications:
-Size: 30(Width) x 30(Length)mm
-Thickness: 6mm
-Voltage: DC 5V
-Current: 0.16 Amps
-Input Power: 0.7 Watts
-Fan Speed: 9500 RPM
-Air Flow: 4.9 CFM
-Noise Level: <28 dB(A)
-Connector: Bare Two Wire
-Fan screws are not included