The Sound Blaster 4.1 Digital redefines expectations at entry level with its performance in gaming and audio. This powerful card, with its S/PDIF output, provides exceptional audio clarity and dynamics. Used with a 4.1 speaker system it will deliver compelling surround audio, alternatively use the S/PDIF output to connect to an external Dolby Digital or DTS decoder. And to free CPU resources for other tasks it uses PCI Bus Mastering technology.The card has further advanced features. They include 16-bit, CD quality recording and playback and an advanced 128-voice Wave-Table synthesizer that delivers rich MIDI playback. For PC gamers' intent on experiencing higher levels of realism, Sound Blaster 4.1 Digital also supports the latest audio technologies such as EAX, Microsoft DirectSound and DirectSound3D.