Creatives Sound Blaster X-Fi Go! Pro brings incredible enhanced 3D audio to any computer, anywhere! Designed for maximum portability, this sound card is small enough to fit into your pocket & even fits on your key ring! Enjoy incredible 3D Surround with any headphones in movies, games & enhance all of your PC & online audio. The Sound Blaster X-Fi Go! Pro is the fastest & easiest upgrade to THX Tru Studio Pro audio technology. Requirements Microsoft Windows 7, Windows Vista, Windows XP (Professional x 64 Edition, Service Pack 2 or above) Intel Core™ 2 Duo or AMD equivalent processor, 2.2 GHz or faster Available USB (Universal Serial Bus) port 1 GB RAM 600 MB of free hard disk space Available CD-ROM or DVD-ROM drive 16-bit Digital-to-Analog conversion of digital sources: up to 44.1 k Hz to stereo output 16-bit Digital-to-Analog conversion of stereo digital sources: up to 44.1 k Hz to stereo output Audio Inputs: One 3.50 mm (1/8-inch) stereo jack for Microphone In One 3.50 mm (1/8-inch) stereo jack for Analog Line Out or Headphones Playback