Audiophile Performance, Convenient Connectivity, USB Simplicity. USB Sound Blaster X-Fi HD is an audiophile-grade sound system with premium connectivity for your Notebook or PC. The front panel includes a conveniently located 1/4″ microphone input and 1/4″ headphone jack with a studio quality headphone amp and volume control. The rear panel features optical I/O, gold-plated stereo RCA I/O plus an integrated phono preamp for direct recording of your vinyl collection from your turntable. The bundled Media Toolbox software lets you record, convert, enhance and organize your digital music files easily while THX TruStudio Pro technology brings you the same great audio experience found in live performances, films, and recording studios. Premium USB Sound Blaster quality. Audiophile-grade components deliver unsurpassed USB audio quality with a signal-to-noise ratio (SNR) of 114dB. THX TruStudio Pro. THX TruStudio Pro for unprecedented audio realismUnique THX TruStudio Pro technology enhances all of your music, movies and games for maximum enjoyment regardless of your source material.