- Stereo digital optical and coaxial input and output providing S/PDIF and professional AES/EBU I/O capability.
 
- 4 independent software selectable input connectors: RCA-style and Toslink optical for external devices and a pair of 2-pin on-board connectors for internal digital audio sources (CD-ROM drive and/or sound card).
 
- Wide range digital audio record and playback sample rate tracking including   32 / 44.1 / 48 kHz  (software selectable).
 
- Software selectable Master  and External Sync Clock for perfect synchronization. 
 
- Full Duplex feature for simultaneous digital audio record and playback. 
 
- Multiple card support. Up to 4 DSPACE boards can be installed in one system and are supported by device driver.
 
- Real-time format conversion between optical and coaxial, S/PDIF and AES/EBU.
 
- Independent power supplies for improved digital audio signal quality reduced clock phase jitters. 
 
- 20 MHz fixed-point DSP with Harvard Architecture and on-board program/data memory capability of 96 Kb (up to 192 Kb) of 15 ns static RAM  provide fast auto-buffering feature, making data flow control independent from data processing. 
 
- Software upgradeable design allows implementing new features without need to change hardware.