These were the most cost-effective TMC2209 stepper drivers I could find, and so far they have been holding out well. Temperatures are fine with the including heat sinks doing the job well. UPDATE: Warning for future buyers, these drivers do not function for sensorless homing. UART and SPI mode were tried, the header pins were checked, but when I switched to sensor less homing, I could not get it to work. A different brand worked just fine.
