TMC2209 has all the functions of TMC2208 and can completely replace TMC2208. At the same time, tmc2209 has better heat dissipation, supports larger current, and supports sensorless homing function. Continuing the characteristics of the series driver, the mute effect is good, the chip has 16 segments, and the maximum segment: 256 segments. Larger driving current, the maximum current can reach 2.5A, and the stable printing current can reach 1.8A. Compared with other of series drives, our drives have better heat dissipation. Support UART mode You can use UART mode in for MKS SGEN L V1.0 / MKS GEN L V2.0 / MKS Robin , SKR 1.3 / 1.4 by setting the jumper cap. No , no welding driver, more convenient to use, this function does not support MKS GEN L V1.0 notes: 1. Be sure to disconnect the power supply before installing to prevent from burning. 2. Be sure to confirm the direction of the driver before installing the driver to prevent the driver from being damaged by reverse connection. 3. Do not plug or unplug module with power on to avoid damage. 4. When installing the heat sink, pay attention to the contact between the heat sink and the pin header. Stop driving short circuit. 5. The product is sensitive to static electricity, please handle it with care when using it, and it is to move it again when using it 6. Please also connect the power supply when measuring the voltage, don't just connect the USB power supply colour: black + blue Material: metal + plastic Package Contents: 6 x TMC2209 stepper driver 6 x heat sink (random color, don't accept the specified color) Note: due to different production batches, there may be some differences in products, which does not affect functional use Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.