Upgrade your new PC to award-winning Sound Blaster X-Fi Xtreme Fidelity audio! Creative's Sound Blaster X-Fi Xtreme Audio PCI Express transforms MP3 music and movies over headphones or surround sound speakers. X-Fi Crystalizer restores the details and vibrancy lost during MP3 and DivX compression, breathing life back into any audio. X-Fi CMSS-3D expands stereo music and movie sound tracks into amazing surround sound even over regular headphones, with OpenAL and EAX 4.0 support for enhanced gaming. The perfect addition to PCI Express-ready PCs, this Windows Vista compliant card features extended connectivity thanks to its integrated digital optical input and output.