The Board is an ATmega2560 it will use

#define MOTHERBOARD BOARD_MKS_BASE_14

As it has 5 Stepper motor Drivers for use with X, Y, Z , E0 and E1


3DP11 Red
3DP12 Blu
Believe me these are your 3D Printer with a few upgrades. Capable of 3D Printing ABS without notable Warp.
The Twins 2.jpg