Creative Labs USB Sound Blaster Audigy2 External Sound Card Sound System (70SB030000000) Superior 24-bit ADVANCED HD audio with easy USB connection Enjoy cinematic surround sound with 5.1 and 7.1 speaker systems Experience concert quality audio with 24-bit DVD-Audio playback Improve CD and MP3 music with EAX Acoustic Enhancements Encounter audio realism with EAX ADVANCED HD game effects