This Photo-optic end stop switch is used by Creality:

• CR-6 CR6
• CR-6 SE
• CR-6 MAX
• CR-10 Z2
• CR-10 SMART
• Cr-30 Print mill
• LD-002H
• LD-002R*
• LD-006
• K8

*Connector may differ on some models

Also used on some Creality Resin and ChuTu based Resin machines with 3 pin JST-XH extension cable

Optical switch - Optocoupler Switch - SX671