Usage Tips: 1. Voltage conversion: This fan cable can convert 5V USB power to 12V voltage, providing the required power for the 12V fan. 2. Speed adjustment function: The built-in speed adjustment switch can adjust the working speed of the fan, usually with three gears: Low speed: suitable for quiet environment, providing soft air volume. Medium speed: suitable for general needs, providing moderate air volume. High speed: suitable for high temperature environment, providing strong wind force. 3. Easy to connect: connected through the USB interface, compatible with various USB power devices, convenient for use in different occasions. 4. Wide application: suitable for computer fans, chassis cooling, cars, outdoor activities and other scenarios. 5. Safety: typically features a safety design to ensure stability and safety during connection and use. Specifications: Condition: New and high quality Wire model: 2464-22AWG (17x0.16MM copper wire) Conductor material: Tinned copper Shell material: PVC Interface: USB A male / fan 4PIN Color: Black Material: PVC + tinned copper wire Note: When choosing, ensure the fan cable has sufficient current carrying capacity, and consider purchasing reliable brand products to ensure performance and safety. The converter and boost module is designed to handle up to 1.5A. Ensure the voltage of the device you connect is between 5-12V and the current does not exceed 1.5A. The actual product may have slight color variation, which will not affect functionality. Package Contents: 1 x Adjustable speed chassis fan cable Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3cm.