Brand Heacent Model 3DP001 Quantity 1 Color Black + green Material PCB Specification Working voltage: 12V; controlling IC; ATMEGA1284P; FT232RL USB interface; with 4 A4988 stepping motor; can control MK1 MK2a MK2b MK3 hot bed; with mini SD card slot; with 3 MOSFET driver hot end hot bed and fan. Features Replacement main control panel for your 3D printer; data exchange by simply connecting it to computer via USB port; supports off-line print with a SD card very convenient. Application Control Reprap 3D printer English Manual/Spec N/A Packing List 1 x Main control panel 1 x Disc