Max 20V 3D Printer Part RAMPS 1.4 RRD Fan Extender Expansion Module For 3D Printer

Feature:
2 (PWM control ) channel (D6/D11)
Each channel maximum 0.5A ( enough for a truly big fan )
Flexible output voltage ( you can connect the FAN RRD extension to support your desired output voltage of 12V, 5V, etc.)
Support Marlin firmware (choose "No. definition motherboard easy adapapt other firmware (such as sprint: just change the" FAN_PIN6 pins.h "in the definition of" ")

Package List:
1 x RAMPS 1.4 RRD Fan Extender