Compact PWM fan controller module for 12V 4-wire DC brushless fans (standard CPU fan pinout). It is compatible with Intel and AMD fans, 4010/5015/6010 cooling fans, and other PWM-enabled models. - Precise compatibility: supports 12V 4-wire PWM fans with the standard CPU pinout, covering common Intel/AMD fans and sized cooling fans. - Automatic temperature control: built-in thermistor measures ambient temperature and automatically adjusts fan speed to balance cooling with noise, improving energy efficiency. - Durable construction: high-quality PCB with stable components, onboard NTC thermistor, PWM output transistor, and secure fan socket for reliable long-term operation. - Stable, low-noise performance: PWM signal up to 25 kHz with smooth duty cycle changes, delivering precise fan response with minimal jitter and interference. - Compact form factor: small PCB module designed for easy mounting in PC cases, enclosures, or compact systems. - Practical use scenarios: gaming PC with quiet idle and responsive cooling; home theater PC or small form factor build needing quiet operation; 24/7 server or mining rig requiring reliable, continuous cooling.