ITEM NAME:Pin 27 Board / Creality CR-10 / Ender 3 for BL Touch Adapter Plate Printer Acces.Applicable to for Ender-3/cr-10 to BL TOUCH. Connect pin 27 to the motherboard. Be sure to align the plug pins on plug 27 with the motherboard. 1 Adapter plate. Usually you need to cut the ribbon cable and solder it to pin 27.