Fan Speed Controller USB to 12V 4Pin Fan Power Adapter Cable for PC Enthusiasts
YWBL-WH 2pcs USB Fan Speed Controller, DC 4 to 12V USB Fan Stepless Speed Governor Controller Regulator with Switch Module Input DC 4-12V to 2.5-8V 5W 5V
SUPYINI AC 5000W Thyristor Motor Speed Controller Adjustable Power Controller for Temperature 17x15x8 AC Fan Speed Controller AC Motor Speed Controller Dimmer
CERRXIAN USB Fan Speed Controller, 18W Stepless Regulator with 5V 4A USB-A & Type-C Input,Easy-Knob Operation for USB Cooling Devices
Akozon USB Fan Speed Controller - Precise Airflow Regulation with Adjustable Knob for 5V USB Fans & Multiple Power Sources
