Fatshark fan controller board with real functions. 

Features

• Short Click - Fan On/Off (LED Indicated)
• Double Click - Toggle Fan Speed ( 1 - 3 ) - LED: 1 Blink = 1, 2 Blinks = 2, 3 Blinks = 3)
• Keep the fan on for 3 seconds or more to save your current speed settings.
• Bridge the pads to have the fan on for 30mins then off automatically. (Similar to the original.)

How To?

1. Open up the PCB cover
2. Desolder the original board
3. Solder on the new one
4. Screw the cover back on and you are done.