Check the listing for details. [3DMakerWorld] RepRapDiscount Smart LCD Controller Adapter. Color: White, Condition: New. Listed at 6.90 USD. Key Features: Easy connect it to your Ramps board to the Smart controller using the Smart Adapter 3D Print without a computer, - Smart LCD Controller required (not included) Compatible with RAMPS 1.4 boards Replacement Smart Adapter Connect your RAMPS board to RepRap's Smart LCD controller board using this Smart Adapter. After connecting this panel to your Ramps you don't need your pc any more, the Smart Controller supplies power for your SD card. Further more all actions like calibration, axes movements can be done by just using the rotary encoder on the Smart Controller. Print your 3D designs without PC, just with a g-code design stored on the SD card. Item Specifics 1 - Smart Adapter To be used with RepRap's Smart LCD Controllers (not included) Flat cable (pictured) not included