These are sold individually, please use the quantity option to order the amount needed for your use.
Move aside TMC2209 - you're just not cool enough. The TMC2226 is an improved version of Stepper Driver that both offers more silent operation and significantly reduces heat with a larger heat dissipation pad with heatsink. One of our favorite community users recorded a 40C difference in temperature!! (results will totally vary).
When using these stepper drivers you need to change the resistor Ohms to 0.15 from the default of 0.11. You should set the following in your config file: