The Hapi-Base unit can connect to a Mac or PC using a single Cat6 Cable. Using AES67/Ravenna, ASIO for Windows and Core Audio drivers for Mac OS. Easily interface the 8 I/O AES/EBU and 8 I/O ADAT optical [switchable to 2channel SPDIF] with your DAW. In addition to the 2-channel DA/Headphone Output. Add Merging Analog I/O modules to expand.