The PocketWizard RZM3-P Pre-Trigger Motor Cord is connected from the Mamiya RZ motor drive connector to the 1/8" Mono miniphone through the pre-trigger switch.The PocketWizard RZM3-P Mamiya RZ Motor Drive Cord is compatible with cameras like the Mamiya RZ67, RZ Pro II, RZ Pro IID, 645 Pro and Super Series, and 645 PRO-TL, which comes with the Mamiya RZ motor drive connector