Provides surround sound field and clear sound quality, suitable for home theater, large-scale 3D games, music listening, karaoke and other entertainment. Support most systems. Interface: 1x MIC (Red), 1x LINE (Orange), 1x F-OUT (Green), 1x EARPHONE (Blue), 1x BASS (Black); Total Size: 120 x 64 x 20mm/4.72 x 2.52 x 0.79-inch (L*W*H); In the package of: 1 x Stereo Audio Card, 1 x CD The sound card provides superior audio quality compared to the built-in sound capabilities of most computers. It can deliver crisp and clear audio with improved depth. With a 5.1 expand sound card, you can experience surround sound, making it perfect for gaming, watching movies, or listening to music. Steps of installation: 1. After installing the CD driver, the 3D audio control panel will appear in the lower right corner of the computer desktop; 2. Select "Speaker" to set up successfully. To plug in the PCI sound card, please stop the motherboard's own sound card or other external sound cards.