Input & Output: USB input 5V, DC output 5–12V, with a maximum output power of 8W, ideal for speed control of low-power 12V case fans.
Compatibility: Supports 4-pin 12V case fans under 8W. ⚠️Although it features a 4-pin connector, only two wires are connected, while the remaining pins are unoccupied since USB power requires only two lines.
Premium Material: Made of 24AWG tinned copper wire, offering excellent resistance to oxidation and corrosion for extended durability.
Easy Operation: Simply plug the USB into a power source or computer, connect the fan, turn on the switch, and adjust the speed freely with the control knob.
Package Includes: Comes with 2 fan speed controllers cable, each with a cable length of approximately 11.8 inches.