Brand: Tripp-Lite. MPN: U437-002. 3.5 mm Audio Adapter Connects to Your lptop’s USB-C or Thunderbolt 3 Port This USB Type-C to Stereo Audio Adapter allows you to connect a microphone and stereo earbuds or speakers to your computer tablt lptop notebook MacBook Chromebook Ultrabook or smartphone. Not only does this adapter allow you to bypass a defective sound card or 3.5 mm headphone jack it also lets you connect to a device that offers only USB-C ports. The adapter features separate microphone (red) and headphone (green) jacks instead of combining them into a single 3.5 mm audio connector as many notebooks do. Built-In USB-C Cable Attaches in Either Direction Unlike traditional USB cables that connect in only one direction the reversible USB-C male connector plugs into a USB-C or Thunderbolt 3 port in either direction for a fumble-free connection every time. The compact unit fits easily into a pocket briefcase or lptop bag for connecting on the go. This USB c to 3.5mm stero audio adapter for microphone headphones - USB-c to headphone jack adapter - USB-c male reversible to stereo mini jack female - silver.