Driver Module, DC 12V 24V 48V 2 Channel PWM 4-Wire Fan Temperature Controller Speed Governor Display Module for PC Fan/Alarm : Amazon.co.uk: Business, Industry & Science
Taidacent 2510-4P 3P Manual 4 Wires 0-5V 12V Fan Speed Controller PWM Speed Control On Off Switch for PC CPU Case Fan with Knob (Solder Connector with Plastic Black Knob) : Amazon.co.uk:
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DC 5V 12V 4 Wire PWM Fan Temperature Control Speed Controller Governor Regulator 40cm Probe for PC Computer Fan/Alarm Module - AliExpress
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