Description: 100% and high quality. Add a virtual 7.1 channel surround sound to your computer with this adapter Plug & Play and easy to use Requires Windows 98SE, ME, XP, Vista, 7, Server 2003, Server 2008; Linux. Must use a USB 2.0 Port Plug & Play, no driver required Use with desktop, notebook, Windows, or Linux Features Volume Up/Down, Microphone Mute, Headset Mute Requires a USB 2.0 Port Stereo output jack, mono microphone input jack Package Content: 1 X External 7.1 Channel USB Sound Card Audio with opp bagDescription: 100% and high quality. Add a virtual 7.1 channel surround sound to your computer with this adapter Plug & Play and easy to use Requires Windows 98SE, ME, XP, Vista, 7, Server 2003, Server 2008; Linux. Must use a USB 2.0 Port Plug & Play, no driver required Use with desktop, notebook, Windows, or Linux Features Volume Up/Down, Microphone Mute, Headset Mute Requires a USB 2.0 Port Stereo output jack, mono microphone input jack Package Content: 1 X External 7.1 Channel USB Sound Card Audio with opp bag