Completely silent and features green leds, that would not be out of place in any computer.
A perfect replacement for case fans and CPU fans.

Picture for Illustration Only

Specification
Air Flow: 25 CFM
Noise Level: 18 dBA
Rated Speed: 1700 RPM
Size: 80 x 25 x 25 mm
Bearing: Silent Sleeve Bearing
Lights: 4 x Green High Intensity LED's
Connector: 4pin Molex
Includes Fan Screws x4