1) NEW VINTAGE A-202689 TYPE 20 ROTARY INPULSE STEPPER SWITCH 5930-00-601-9882 | eBay
Motorized Switches
Amazon.com: 3D Printer X Y Z-Axis Stepper Motor Limit Switch Endstop Cable Line for Ender-3 Ender3 of 3 Durable Plastic Cable Set for Ender-3 Printer Stepper- Motor Cable and Limit Switch :