MOTU 2408 mk3 PCI Audio Interface, x3, plus System Manual and | Reverb,MOTU - MOTU Tip of the Day July 24, 2013 2408 in Standalone mode Any of the 2408 models (original, mk2, or mk3) can operate as a format converter when not connected,User manual Motu 2408Mk3 (English - 128 pages),MOTU 2408 Mk3 Mod