Motor drive cords connect to the camera's remote cable socket, and enables a Quantum Radio Slave or FreeXwire unit to trigger the camera's shutter.
This cable will trigger the Bronica SQAi, SQAM, ETR motor drive, Canon Elan II/E (for use with Radio Slave 2, 4, 4i ONLY; single step triggering (no auto focus) only), and Hasselblad H-1 cameras.