The BMB2 features two optical MADI ports for use with ASIO (Windows) or CORE AUDIO (Mac) PCIe MADI cards. With two optical ports, 64in/64out at 44.1k, 48k, 88.2k, 96k, and 32in/32out at 176.4k, and 192k are supported. With 6 BAD8s and 4 BDA8s a 48x32 IO can be achieved. With 2 BAD8s and 8 BDA8s a 16x64 IO can be achieved. With the configurability of the MOTHERHSHIP the IO possibilities are limitless.