DC 12V Four Wire Thermostat PWM Fan Speed Controller Governor Driver Module Temperature Relay for PC

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 Circuit Load Capacity: Maximum current per output 4A, the bus currents up 9A Output Range:  The First Channel: 20%-100% or 40%-100% (TFL=ON) The Second Channel: 10% -100% The Third Channel: 10% -100% Note: The above range only PWM range, the actual fan control effect will vary depending on the fan. Temperature Probe Parameters: 50K B=3950 Thermostat Temperature Zone Error: Generally 3-5% (Depend on the temperature probe) Stall Alarm Minimum Speed: 700-800 rpm Weight: Approx. 17g / 0.6oz Function Setting Switch Description: (Any changes to the setting must be repowered to start before it takes effect) Package List: 1 x PWM Fan Speed Controller 1 x Buzzle 1 x Probe