Descriptions:
– The intelligent controller includes an SD card reader, rotary encoders, and a 20-character 4 line LCD display. You can easily connect it to your RAMPS 1.4 board using “smart adapter” included.– This panel connects your RAMPS 1.4, you do not need your computer, your SD card intelligent controller power supply. All further operations, such as calibration, the axis movement can be done only with a rotary encoder intelligent controller. 3D design print without a computer just uses the G code design stored on the SD card.Specifications:

Brand Name: TEVO
Type: 2004 LCD montherboard control Panel
Package Size: about 15cm x 15cm x 15cm (5.91in x 5.91in x 5.91in)Suitable: 3D Printer
Package Included:

1 x LCD Smart Display Controlle Adapter2 x Cable