Features 24 tracks; 192 virtual tracks (at 48kHz) for up to 90 minutes of continuous recording. Built-in internal hard disk plus pullout bay for extra removable Mackie Media™ hard drives. Mouse, keyboard, and monitor ports are built-in, and no external computer is needed. On-screen graphic interface mirrors front controls and meter bridge. Full-feature editing software is built-in: provides nondestructive cut, copy, paste; 999 un-do’s with realtime history list; continuously scrolling track waveforms; 2x, 4x, 8x, and 24x track displays; drag-and-drop cross fades and track slip; regions and super (noncontiguous) regions. Syncs to SMPTE or MIDI. Internal Word Clock, SMPTE, Black Burst, NTSC, and PAL sync built in. 100BaseT Ethernet port built in. Use with D8B or standalone with analog or other digital consoles. I/O card bay accepts all Mackie Digital Systems cards including analog, ADAT, TDIF, AES/EBU.