Ramps1.4 RRD Fan Extender Max 20V Fan Expansion Module for 3D Printer,Default NO

Feature:

Max 20V

2 (PWM controllable) channels (D6/D11)

Max 0.5A per channel (enough for a really big fan)

Flexible output voltage (you can connect the RRD-FAN-EXTENDER to 12V,5V,... in order to support The output voltage you need)

Each channel has a fly back diode

Easy setup (plug and play)

Supported by Marlin firmware (choose \"#define MOTHERBOARD 34\")

Easy to adapapt to other firmware (e.g. Sprinter: just change \"#define FAN_PIN 6\" in \"pins.h\")

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