Yamaha MY16-EX (16 Channel MADI Secondary Card)

Yamaha MY16-EX (MY16EX) 16-Channel EtherSound, MADI I/O Expansion Card . The MY16-EX is a 16-channel digital input/output card that enables you to extend the number of channels of compatible cards, such as the Yamaha MY16-ES64. Up to three MY16-EX cards can be daisy-chained.