1. Voltage conversion: This fan cable converts 5V USB power to 12V output, providing power for 12V fans. 2. Speed adjustment function: Features a built-in speed control switch with three settings: Low speed for quiet environments, medium speed for general use, and high speed for enhanced cooling in high-temperature conditions. 3. Easy connection: Connects via USB interface and is compatible with various USB power sources, making it convenient for use in multiple scenarios. 4. Wide application: Suitable for computer fans, chassis cooling, automotive setups, and outdoor activities. 5. Stable performance: Designed for reliable connectivity and consistent operation. Specifications: Condition: Wire model: 2464-22AWG (17*0.16mm copper wire) Conductor material: Tinned copper Shell material: PVC Interface: USB A male to fan 4PIN Color: Black Material: PVC + tinned copper wire Note: Ensure the fan cable has sufficient current capacity. Use only reliable products to ensure proper performance. The converter and boost module supports up to 1.5A load. Confirm that connected devices operate within 5-12V and draw no more than 1.5A current. Actual product may vary slightly in color due to lighting and display differences, which does not affect functionality. Package Contents: 1 x Adjustable speed chassis fan cable Note: Light reflection and different displays may cause slight color variation. Measurement allowance is +/- 1-3 cm.