This USB to 3.5MM Audio AUX Cable Adapter functions as an external sound card, allowing you to easily convert a USB female port to a 3.5mm audio jack. Perfect for adding or restoring audio output and input on notebook PCs, laptops, and desktop computers without opening the case. Designed with combined audio support, this adapter works seamlessly with standard 3.5mm headphones, headsets, and microphones. Ideal for video calls, gaming, online teaching, music playback, and voice recording, providing clear sound transmission and stable performance. The adapter features a true plug-and-play design: simply connect it to your USB port and 3.5mm audio device and it is ready to use. No additional drivers or software are needed on most operating systems, making it a convenient solution for quick audio expansion or emergency replacement. Compatible with most notebook PCs, desktop computers, and other devices equipped with a standard USB port. Suitable for systems such as Windows, for macOS, Linux (driver-free on most versions), making it a flexible audio solution for home, office, and travel use. Lightweight and small, this external sound card adapter is easy to carry in a laptop bag, pocket, or accessory pouch. Its compact size makes it an excellent backup audio adapter for business trips, school, or daily commuting. Perfect solution if your notebook or PC 3.5mm audio jack is broken, unstable, or unavailable. Simply use an available USB port to restore full headphone and microphone functionality without costly repairs. Suitable for home office, online conferences, remote learning, voice chatting, gaming, watching movies, and listening to music on PCs and notebooks. A practical accessory for users who need a reliable USB female to 3.5mm jack headphone microphone adapter. Easy Connection Instructions 1. Plug the USB end of the a