Features: Flexible Power ConversionThis link cable is developed to convert 12V/9V/5V power couplers into a refrigerating answer, effectively reducing the operating temperature of routers and other net devices. Broad CompatibilitySupports standard 12V/9V/5V power couplers,. Safe Potential OperationEnsures safe action by matching the potential to the followers speed; lower potential conclusions in slower rotation, while exceeding the evaluated potential can damage supporter. Efficient Power ManagementThe overall power of supporter should not top power of the link, Easy InstallationFeatures a 4Pin connection and arrives in 30cm otherwise 50cm lengths, making it simple install and remove, enhancing computer refrigerating efficiency and extending device existence. Specifications: Substancemail: Polystyrene Sizemail: Standard 5521 to 4P specification Characteristicsecond: Black 30cm / 50cm Technical parametersecond: Assist computer fan control function, suitable for various fan models Use scenarinonbeing: Twelve hundred use in circumstances where computer fan speed demands exist adjusted, such as during games otherwise during burden calculations, to help computers effectively scatter heat. Practicality: Direct current install and disassemble, improve computer refrigerating efficiency, and extend computer service life Package Includes: 5521 to 4P computer fan control cable × 1 note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid.