High precision and excellent performance: The precision adjustable resistor allows for precise speed adjustment and features a protection chip for added safety. Efficient and durable: Made with brand new materials, this speed regulator has low loss and generates minimal heat, ensuring long-term reliability. Versatile fan control: Completely shut down the fan and freely adjust voltage to control speed, with support for multiple fans and compatibility with both 3-pin and 4-pin motherboard interfaces. Convenient power options: Equipped with a large power supply 4P interface and a SATA interface, making it easy to connect and power the speed regulator. Ideal for home and office use: Suitable for various settings, including home and office environments, providing effective fan speed control for improved comfort and efficiency. Item Name: Governor Material: ABS Features: Temperature Regulating, 4-way Control, Low Loss Size Details: L: 8cm/3.15", W: 4cm/1.57" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Governor