LCD-Panel- adapter-FD is an adapter for Adruino DUE and Ramps-FD, which are always combined to work as a 3D printer control board. As the operating voltage of the Arduino DUE’s chip is 3.3v, while the LCD display works best at 5V, we add a signal amplification circuit in chip of the adapter, so that the DUE board can better drive and isolate the LCD display. LCD-Panel- adapter-FD is considered to be one of the best LCD adapters for DUE+ Ramps-FD on the market.