Unique Bargains USB to 4 Pin Fan Adapter 5V PWM to USB Adapter Cable with ON/Off Switch and 2-Way Splitter 11.8in for Computer PWM PC Fan Speed Controller

USB to 4-Pin PWM 5V fan power adapter cable is designed to power 3-pin/4-pin PC case fans with USB Type-A ports; It supports both 3-pin and 4-pin fan connectors, enabling direct power supply from USB sources to cooling fans.

This adapter offers versatile cooling solutions by converting USB power to fan compatible voltages; Key advantages include PWM compatibility, 3-pin/4-pin connector support; The PVC design enhances durability, while the compact size ensures easy integration into PC builds or USB-powered devices.

Connect the USB-A end to a USB port, and the 4-pin connector to your fan; Ensure the fan’s starting voltage is rated voltage; For optimal cooling, pair with PWM-compatible fans and avoid overloading beyond rated power.

Only use with fans rated voltage, verify fan compatibility with 3-pin/4-pin connectors; Avoid bending the cable excessively to prevent damage to the tinned copper wires; Test with a single fan before connecting multiple devices; It can also be used with a 12V interface, but because the USB port only provides 5V, the fan speed will be slower, and the lights will be dimmer or not light up at all; This is not a product quality issue; It is recommended to use a 12V fan cable with the 12V interface.