By simply adding a 3.5mm aux TRRS port (integrated audio-in and audio-out interface) to your computer, a USB external sound card allows you to connect your current 3.5mm TRRS headset to your computer via a USB interface. Note: Headsets with a separate 3.5mm audio port for the microphone and headphones do not work with it. An alternate stereo USB audio adapter It is ideal for replacing a damaged USB audio adapter or getting around a malfunctioning sound card or audio port. Excellent Sound Quality: Advanced C-Media IC technology was used by the USB external sound adapter to achieve the best possible sound quality and device performance. It has an incredibly small design and a sturdy ABS housing. Flexible Cable Design: the USB to 3.5mm Adapter's 15cm cable length provides more