Function: This cable is a 5V USB to large 4-pin fan adapter, enabling you to power most case fans via a USB connection. Compatible with large 4-pin case fan connectors. Connector: One end is a standard USB Type-A plug; the other end is a large 4-pin fan connector. Compatibility: Designed for fans rated at 5V or lower. 12V fans will operate at reduced speed and lower noise due to the 5V supply. Usage: Powers case fans directly from a computer’s USB port. Suitable for DIY modifications, such as adapting case fans for laptop cooling pads. Product Name: USB to Large 4-Pin Fan Adapter Cable Wire Model: 2464, 22 AWG Conductor Specification: 17×0.14 mm² tinned copper Outer Diameter: 3.5 mm Rated Temperature: 80°C Notes: - Fans must be rated for 5V or lower to function properly. Fans requiring higher voltage will not operate. - When powered via USB, fan speed is reduced by approximately 60%. A higher-RPM fan is recommended for adequate airflow. - The fan must support low-voltage startup at 5V. If the fan cannot start at 5V, it will not rotate—even if the cable is fully functional. Color: Black Material: PVC Package Contents: 1 × USB to Large 4-Pin Fan Adapter Cable Note: Light reflection and display settings may cause slight color variation.