The Multiface One was released by Romantic Robot UK Ltd in 1986 for the ZX Spectrum 48K. It cost between £30-40 and could save data and programs to cassette tape, ZX Microdrive, or the Opus Discovery external 3.5" disk drive. It featured a Kempston joystick port. It also allowed the user to view and edit the contents of memory - either for debugging programs or for cheating at games. A pass-through port in on the back of the unit allowed other peripherals to be connected at the same time as the Multiface.