Features 1、Manual or Automatic: This PC fan temperature controller integrates manual speed regulation and automatic temperature control and speed regulation function. 2、Reverse Timing Fan: This PC fan temperature controller supports the control of the reverse timing fan. 3、PWM Control Mode: This PC fan temperature controller has conventional PWM fan control mode (default mode). This mode is used for the four wire fan control. 4、Reverse Sequence Mode: Conventional reverse sequence PWM fan control mode is used in most reverse timing four wire fan control. When fan is in normal mode control, speed change is opposite, and control line is connected to negative pole at full speed. 5、Reverse Sequence Fan 80% Control: This mode is used in a very rare type of reverse timing fan. When the fan is in conventional mode control, the speed change is opposite, and the control line is not turned when the negative electrode is connected. Specification Package List 1 x Fan Temperature Controller 1 x Probe