PocketWizard 804-525 PTMM Pre-Release Trigger Adapter (Black) The Pre-Release Trigger Adapter features a switch box and fits between the PocketWizard radios, current ACC and new one-foot length ACC-1 camera cables^add a switchable Pre-Release function^Use this combination for PocketWizard Plus II and MultiMAX radios in place of the previous PocketWizard Pre-Trigger-style Motor Drive cables.