12V DC Molex to 3-Pin Manual PWM Fan Controller – Coolerguys

12V DC Molex to 3-Pin Manual PWM Fan Controller 840556070702 This controller is built to handle up to 1A of 12V current. It has a 4-Pin Molex Input Power with a Pulse Width Modulation manual controller to dial your speed in the smoothest possible progression while maximizing the range. You can use one of our splitters 

Noctua NA-FC1 PWM Manual Fan Controller – Coolerguys

Manual 12V DC Variable Speed controller with Molex connector 840556089537 Designed to work with DC 12V fans. Will fit most standard DC fans with

Coolerguys Manual 12V DC Variable Speed controller with Molex connector

4 pin fan controller

Antrader 3-Pack 60mm x 60mm x 15mm 6015 12V Brushless DC Cooling Fan 2pin for DIY 3D Printer Extruder Humidifier : Electronics

Coolerguys Power Supply (1A) & Manual 12V DC Variable Speed controller