This kit uses direct replacement parts from Creality and comes with all the necessary components to turn your CR-10 into a CR-10S!  If you are just needing the dual Z kit, visit that listing here. This will also work for the S4 (400) and S5 (500) version.

10S Upgrade kit contains:

1 Creality CR-10S (Atmega 2560) Motherboard

1 LCD with 1 ribbon cable (reuse your existing LCD cable and rotary knob )

1 Filament Runout Sensor with cable and braided sleeve