Feature 1 TMC2208 Chip: This is an ultra quiet two phase stepper motor driver chip, with continuous drive current of 1.4A, peak current of 2A, voltage range of 4.75V36V, 256 subdivisions 2 Perfectly Compatible: This module compatibles with existing 3D printer electronics perfectly, ideal for the 3D printing market 3 Replacement: This module can replace the original TMC2100 A4988 DRV8825 LV8729, with heat sink for lower heat generation 4 Function: With this stepper motor driver module, you can test or flash for SilentStepStick with a USB to serial converter 5 Easy Usage: This module comes with stackable header that can be used directly on the 3D printed board, has been pre configured to run standalone on a USB to serial adapter with the VIO VM jumper closedItem Type: Stepper Motor Driver ModuleMaterial: Aluminum Alloy and PCBPeak Current: 2AContinuous Drive Current: 1.4AVoltage Range: 4.75V-36VInterface: Step or DirConfiguration: CFG pin or UARTNative Microsteps: Up to 1/256MicroPlyer Microsteps: 1/256Logic Voltage (VIO): 3-5VMotor Voltage (VM): 4.75-36V Package List1 x Stepper Motor Driver Module1 x Heat Sink1 x Screwdriver