Pro Tools|HD 2 includes the HD Core card and an HD Process card, offering more than double the mixing and processing power of HD 1 systems, support for 64 channels of I/O*, plus guaranteed support for up to 128 simultaneous audio tracks with no stress on the computer. Expanding the system's dedicated processing power and I/O capacity is as easy as adding additional HD Process Cards

Technical specifications

Sample rate support up to 192 kHz
Next-generation, dedicated hardware performance combined with host-based processing capability for ultimate power and flexibility
World-class, high-resolution audio interfaces, each offering a wealth of analog and digital connections and unmatched price/performance
A complete professional audio solution, including audio interfaces, synchronization, MIDI and mic preamp peripherals, and more
Expandable DSP power and I/O capacity
Includes TDM II, Digidesign's new bus architecture design, providing support for extremely large mixing configurations
Proprietary new DigiLink interface standard for connectivity of HD Core and HD Process cards at lengths of up to 100 feet*
HDpack plug-in promotion, providing thousands of dollars in Digidesign and Development Partner plug-ins for free
A wide range of options available from Digidesign and Digidesign Development Partners
Full session compatibility with systems running Pro Tools 5.1 software or higher; supports all older Pro Tools sessions