a series of droids manufactured by Serv-O-Droid for communications and translation. These humanoid automatons have large eye-like pods on their heads and boxy features. They are somewhat outdated, but were proficient in scrambling and encrypting transmissions. Some were programmed as security or defense drones that warned their masters of imminent attacks. When the CZ series was first procuded, Serv-O-Droid painted every model in a green, peach, and yellow color scheme, to make them stand out from the competition.