USB external sound card easily adds a 3.5mm aux TRRS port (integrated audio-in and audio out interface) to your computer, which enables you to connect your existing headset with 3.5mm TRRS to your PC through a USB interface. Additional USB stereo audio adapter: It is perfect to bypass a faulty sound card, audio port, or as a replacement for a broken USB audio adapter. Superb sound quality, USB external stereo sound adapter adopted advanced C-Media IC technology for optimal sound quality and device performance. Easy to set up: no driver required, just plug and play! USB bus-powered, no external power required. USB to aux adapter supports listening + speaking, dual functions. Easily adds a 3.5mm TRRS aux port (integrated microphone-in and audio out interface) to your devices. This stereo to usb adapter can work for your PC, PS4, PS5, Laptop, Desktop, and more. *DO NOT work for TV/Car/PS3/Truck etc.