Creative X-Fi Xtreme Audio Sound Board - X-Fi - PCI - 24 bit - Internal. The ideal audio upgrade for Media Center PCs. Creative"s Sound Blaster X-Fi Xtreme Audio gives an experience beyond studio quality with MP3 music and movies! Featuring award-winning X-Fi technologies, X-Fi Crystalizer restores the details and vibrance lost during MP3 and DIVX compression, breathing life back into any audio, while X-Fi CMSS-3D expands stereo music and movies into amazing surround sound. Effective over virtually any speakers, including stereo speakers, Sound Blaster X-Fi Xtreme Audio even provides unbelievable surround sound over normal headphones! The low profile design plus digital out for connecting to a home cinema system make it ideal for Media Center PCs.