Description: Efficient Speed Control: This PWM low-voltage speed controller is designed for 4-pin fan, allowing precised and efficient fan speed adjustments to optimized cooling performance Convenient Power Supply: Equipped with a power input, this PWM Speed Controller offers easy and versatile connectivity options for powering your DIY Compact Design: With dimensions of just 45 x 22 mm, this governor input port is Usb Type C female, Output is 12V PWM 4pin port. Material: Made from quality pp, the 4Pin PWM Fan Governor ensures durability and longevity, making it a reliable component in your cooling system setup Complete Package: The package includes 1pc PWM speed controller and 1pc cable, providing everything you need to get started with your fan control project right out of the box Specification: Material: PP Output: 12V Plug: 4Pin   Size Chart: 4.5cmx2.2cmx1.8cm/1.77inchx0.91inchx0.87inch Package Includes: 1 Fan Controller 1 Adapter Cable Note: Please allow slightly errors 1-2cm differences due to manual measurement.