M68 sensor tilt plate (5mm) is independently developed by ZWO and specially made to match with the full-frame cooled camera ZWO ASI6200MM/MC Pro.
You are encouraged to use it with ZWO 2inch EFW and ZWO M68 OAG and mount them on the M68-thread telescope side.
The original M54 sensor tilt plate of ASI6200 can only be used to connect with the M42/M48 thread telescope side for now.
While this new M68 sensor tilter plate can be used to connect with the M68 thread telescope side.