What's in the Box and What's the Deal
The HC-KFS73/SET is a bundled servo motor kit from Mitsubishi. It packages the HC-KFS73 servo motor with the MR-JCCBL5M-L encoder cable, the MR-PWCNK1 power supply connector, and the MR-J2CN1 connector. This is a complete set for a single-axis motion control build, not a loose motor you have to chase cables for.
