Four Wire Thermostat PWM Fan Speed Controller Governor Module for PC Speed Control Function DC 12V

Note:
Please note that the controller is a four-wire PWM fan controller can control four-standardized protocols in line for Intel's four-wire fan (all four lines of the chassis and CPU fan are met, a server with more than 97% can control fan violence). Unable to control two-wire or three-wire fan, you can not completely turn off the fan!
BF1, BF2 (No.4,5) correspond to FAN1, FAN2 stop alarm function switch. When the corresponding open, the controller will sound (with buzzer needed) and light alarm, fans restored after the alarm is cleared automatically rotated. If BF1 and BF2 are open (ON), the FAN1, FAN2 have any one or two stops, the controller will alarm.
Not for: Delta FFR0612VHE, FFR0612DHE, Dimensions 6038, Non-standard anti-timing fan (reverse adjust speed)

Specification:
Board Size: Approx. 5.3*4.5cm/2*1.7inch
Positioning Hole Position: 44*37mm/1.7*1.5inch
Positioning Hole Diameter: 3mm
Operating voltage: DC12V

Package List:
1 x PWM Fan Speed Controller
1 x Buzzle
1 x Probe