External USB sound system with true 5.1 digital out and analogue audio outs Ideal for upgrading the audio on your laptop or desktop PC Easy installation connects instantly to the USB port 16-bit 48kHz playback and recording Powered by USB - no adaptor required USB 2.0 backwards compatible with USB 1.1 Input connectors line-in and microphone Output connectors front rear subwoofer and centre speakers EAX 2.0 Directsound 3D compatible Mute button with LED indicator Includes high quality USB cable Compatible with Windows 98SE 2000 ME XP Vista and 7 does not support Mac or Linux Dimensions W x H x D 85 x 125 x 25 mm