100% brand new and high quality.Quantity: 1Add a virtual 7.1 channel surround sound to your computer with this adapterPlug & Play and easy to useRequires Windows 98SE, ME, XP, Vista, 7, Server 2003, Server 2008; Linux. Must use a USB 2.0 PortPlug & Play, no driver requiredUse with desktop, notebook, Windows, or LinuxFeatures Volume Up/Down, Microphone Mute, Headset MuteRequires a USB 2.0 PortStereo output jack, mono microphone input jack