Features Precise Control: Achieve accurate control over your 3D printer with the TMC2209 step motor driver, ensuring smooth and precise movements for high-quality prints. User-Friendly Setup: Easily switch to uart mode by using jumper caps, eliminating the need for soldering, making it compatible with various 3D printer motor controllers. Enhanced Efficiency: Utilize the sensorless feedback function for improved sensitivity, enabling efficient and reliable operation of your 3D printer motor driver. Silent Operation: Experience noise- performance, while the simple and flexible connection design simplifies installation for a hassle- setup. Efficient Cooling: The included heat sink ensures fast and efficient cooling, maintaining stable and reliable performance during extended use. Specification: Item Type: Step Motor Driver Features: Ultra quiet, high current, 256 microstep subdivision, good heat dissipation effect, UART mode support, use with MKS SGEN-L, without jumper. TMC2209 has all the functions of TMC2208. It can completely replace TMC2208. At the same time, it has less heat, can support higher current, the maximum peak current can get to 2.5A, and infinite 0 return. Material: Aluminum alloy, PCB. Default Current: 1.25A Maximum Current: 2.5A Logic Voltage: 3.3V, 5V. Input Voltage: 5.5V-28V. Microsteps: Up to 1/256. Mode: Dir/step, uart. Package List: 5 x Step Motor Driver 5 x Heat Sink Note: betweendiv>1. Before installing the hard disk, be sure to disconnect the power supply to prevent the hard disk from burning. between/div>betweendiv>2. Before installing the drive, make sure to confirm the direction of the drive to prevent the drive from burning due to reverse connection. between/div>betweendiv>3. Do not plug or unplug the drive module when there is power supply to avoid damage. between/div>betweendiv>4. When installing the heat sink, pay attention to the contact between the heat sink and the pin. Stop the drive short circuit. between/div>betweendiv>5. This product is sensitive to static electricity, please handle it carefully when using, and it is better to move again when using. between/div>betweendiv>6. Verf measures the voltage between Gnd and potentiometer. between/div>betweendiv>7. Do not connect the motor when measuring the voltage, otherwise the driver will be easily burnt. between/div>betweendiv>8. Please also connect the power supply when measuring the voltage, not just the USB power supply. between/div> Package List 5 x Step Motor Driver 5 x Heat Sink