Tomshoo Expansion Plate for 3D Printer, V3.0 Board, 4*A4988 Driver, 4*4401 Stepper Motor Kit

Latest Version 3.0. GRBL 0.8c compatible. (Open source firmware that runs on an board that turns G-code commands into stepper signals) 4- support. (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th with custom firmware using pins D12 and D13) 2 x End stops for each (6 in total); Spindle enable and direction; Coolant enable. Package Size: 26.5 * 8.5 * 6.5cm / 10.4 * 3.3 * 2.6in Package Weight: 1200g / 42.3oz Packing List 1 * V3.0 1 * Board 4 * A4988 Driver 4 * Heat Sink 4 * 4401 Stepper Motor 4 * Motor Cable 1 * USB Cable