Transform your PC into a home theater system with multi channel surround sound with the Siig SoundWave Optical 5.1 Sound Card. This sound card receives input from your PC's USB port and outputs high quality digital sound through the Toslink optical port. It even allows you to play DVDs on your PC! Plus, the easy Plug-n-Play installation and wide compatibility make the SoundWave Optical 5.1 simple and convenient. For a reliable, affordable upgrade to your PC, choose the Siig SoundWave Optical 5.1 USB Sound Card.