The external sound card for gamers with headsets and for anyone else who wants to control and enjoy sound. The external CSL USB sound card offers three functions at once: 1. The built-in D/A converter generates audible analog sounds from digital audio signals and provides them at the outputs for headphones and headsets. 2. Gamers benefit from the 4-pole connection for their headset, which is often missing on many computers. 3. The card functions as a USB hub and provides three easily accessible USB ports. With the "Start/Pause" and "previous and next track" buttons, you can control music playback, and the built-in equalizer offers four sound settings for your preferred audio. You can quickly manage sudden volume changes, such as those from ad clips, with the large volume control.