3D Printer 12‑24V Motherboard Connecting Cable Stepper Motor Driver Heat Sink Kit 3D Printing Motherboard Item Type: 3D Printer Control Motherboard Opening Size: Approx. 102 x 76mm / 4 x 3in External Size: Approx. 110 x 84mm / 4.3 x 3.3in Processor: For STM32 Input Voltage: 12V-24V 5A-15A Stepper Driver: 4988, 8825, 8729, 2100, 2208. Temperature Sensor Interface: For NTC100K, 31855 Print File Format: G Coding Support Machine Building: For XYZ, for Kossel, for Corexy Recommended Software: For Cura, For Simplify3d, For Pronterface, For Prpetier Host Firmware Upgrade: Storage Card Stepper Motor Driver Model: TMC2209 V2.0 Material: PCB, Aluminum Alloy Micro Step: 256 Subdivision Drive Current: 2.8A Configuration: STEP Or DIR Or UART Default Factory Current: 0.85A Load Drive Motor Voltage: 5.5-28V IC Logic Working Voltage: 3-5V Application: All Kinds Of 3D Main Control Board Recommended Current: No More Than 1.7A