Welcome to our store! 1. 3.0A CURRENT: The S2210 driver module is a TMC2210 chip designed for a supply voltage of 4.5 to 36V, with a maximum current of 3.0A and continuous current of 2.1A. It can handle input voltage up to 36V. 2. COMPATIBLE: Stepper motor driver compatible with StepStick and Pololu A4988 stepper motor drivers. Components on the bottom of the PCB for better heat dissipation and automatic standby power saving. 3. CFG PIN: Printer driver's step/direction interface with microstepping interpolation (up to 256 microsteps). Selectable input microsteps from 1 to 64, configurable via CFG pin. 4. IO HARDWARE CONFIGURATION: All functions in the stepper motor driver require only IO hardware configuration; no software is needed. 5. REPLACEMENT: Replace damaged, broken, or unused printer drivers. Easy to use and stable performance. Product Type: 3D Printer Stepper Motor Driver Material: PCB Chip: TMC2210 Configuration: CFG pin Microstepping up to: 1/64 Logic Supply Voltage (VIO): 2.2-5V Motor Supply Voltage (VM): 4.5-36V Motor Phase Current Maximum: 2.1A RMS, 3.0A Peak Internal V-regulator: Activated