S21 comes complete with dual DMI (DiGiCo Multichannel Interface) option card slots, perfect for expandability, as it can interface with industry formats be it Analogue expansion, MADI, Dante, Optocore, Waves SoundGrid, or Calrec’s Hydra 2 Network. All bases are covered.
DMI-MADI-C
DMI-AES
DMI-OPTO
DMI-DAC
DMI-AVIOM
DMI-SOUNDGRID