Feature:1. Wide System Compatibility: Compatible with multiple operating systems, including for Win 98 ME 2000 XP 7 8, for VISTA, making it versatile for various users.2. 5.1 and 7.1 Channel Support: This external sound card truly supports 5.1 and 7.1 channel, allowing you to connect to 5.1 speakers for an immersive sound experience.3. High Sampling Rate: With a sampling rate of up to 48KHz, it supports digital recording functionalities, ensuring that sound quality is clear and pure for all your needs.4. Intelligent Noise Reduction: Featuring the CM6206LX smart noise reduction chip, it offers stable sound quality that provides an experience akin to being right at the event.5. Convenient Connections: Easily connects to televisions, speakers, and HTPC home theater setups, meeting high sound quality needs for watching movies, gaming, karaoke, and other entertainment settings.Specification:Item Type: External Sound CardMaterial: Aluminum AlloyInputs: Mic Input, 3.5MM Sound Input, Optical Fiber InputOutput: Front Output, Rear Output, Bass Output, Optical Fiber OutputSupported Systems: For Win 98, ME, 2000, XP, For VISTA, For WIN 7, For WIN 8, For OS X 9.1(Only 2 channels can be used).Package List:1 x External Sound Card1 x CD DiscNote:Only one of the sound card's mix and reverb functions can be used at the same time!