NBA-120U is an easily accessible microphone and headphone socket. It can be used to connect a non-USB headset to your computer. By using NBA-120U, there's no need to crawl around under your desk when you want to plug in your headphones. Compliant with USB 2.0 and USB audio device specification 1.0, this USB to audio adapter couldn't be any simpler to install. NBA-120U integrates into any computer environment, providing superb sound quality and convenience that can't be matched.