- oplab module, ZM-1 is an input / output hardware expansion for OP-Z. it adds midi, cv/gate and PO sync capability over four 3.5mm 1/8" jacks, allowing OP-Z to directly communicate with external midi gear, modular synthesizers, pocket operators, and more. oplab ZM-1 user guide
- rumble module, ZM-2 is an internal soundless haptic subwoofer accessory for OP-Z, allowing you to physically feel the music in your hands. rumble ZM-2 user guide
