Welcome to the store! Features: Increase speed to reduce the temperature of computer components when computer components are busy. Reduce speed to reduce noise and power consumption when computer components are idle. Professional high-speed control circuit, high performance, power supply interface supports large 4Pin/SATA. The regulator is installed in the PCI position of the chassis, which is convenient for installation and does not take up space. PCI bracket available for installing fan speed control, to adjust the cooling fan speed. Specifications: Power Supply: 4Pin/SATA (Optional) Material: Aluminum Alloy Color: Black Power Supply Voltage: 0-12V Connectable Fans: 8 Installation Position: PCI position of PC chassis Fan Interface: 4PIN (3PIN can be connected)/SATA Size: Mixed Note: Due to lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1 cm error due to manual measurement. Package Includes: 1 x Speed Controller Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!