Turn your PC or notebook into a 5.1-channel entertainment system with the Creative Sound Blaster X-Fi Surround 5.1 Pro USB sound card. Intended to replace your motherboard's onboard audio, this external sound card adds rich, Dolby 5.1 audio to any PC or notebook with a USB 2.0 port. The card features THX's TruStudio Pro technology, which enhances audio depth, improves bass response, and more. Gold-plated RCA stereo and optical digital outputs support high-end audio performance, while microphone and headphone jacks make Internet chat easy. DTS and Dolby Digital Recording codecs can be added with a free software download to enhance movie sound.