The Apogee Electronics Symphony I/O MK II Pro Tools HD Card is an interface option card that allows you to connect your Symphony I/O MK II to Pro Tools HD hardware. This card enables the sharing of up to 32 bidirectional channels at 96 kHz or 16 bidirectional channels at 192 kHz, making it suitable for postproduction, broadcast, live sound, or recording studio networks.

The Symphony I/O MK II system can be configured with custom I/O options ranging from 8 to 32 analog channels. Furthermore, the Pro Tools card can be upgraded with Audinate's Dante Brooklyn module (sold separately), offering a versatile solution for integrating multichannel Dante audio networking into your Pro Tools / Symphony setup. With the optional Dante card, you can fit up to 32 channels with Pro Tools and redundant Dante connectivity into a single two-space rack device, providing a space-efficient solution.