The Evercool 40mm x 28mm High Speed PWM Fan mounts on standard 40mm fan holes. This fan puts out a large volume of air for it's size. This fan uses energy saving PWM, and has a 4-pin PWM connector type.
!!! Attention: these 4 pin fans DO NOT display an RPM signal. This function does not work, and was a production issue for this particular batch. PWM signals function correctly, and otherwise the fans function as normal!!!
Sunon PMD1204PQB1-PWM 40x28mm-4pin with PWM, Hi-speed.
With the PWM fan connector you can let your motherboard keep this fan running at minim...