The Duex2 and Duex5 are expansion boards for the Duet 2 controller. The Duex2 has 2 additional TMC2660 stepper drivers and the Duex5 has 5 additional TMC2660 drivers. Apart from this they are are the same:
- 5 additional heater outputs.
- 5 x 5V servo outputs.
- 5 additional endstop inputs with 3.3V or 5V selection.
- 6 controlled fan outputs, switchable voltage between 5V, 12V or VIN.
- 12V regulator switch.
- 5 additional thermistor inputs.
- 2 additional daughter board slots.
- Optional 5V external power input.
Both boards are supplied with a 50 way connector cable to connect the Duet 2 with the Duex.