"Sanwa Supply USB Audio Conversion Adapter (Type-C) MM-ADUSBTC1" Purchased in August 2025, but I am selling it as I did not use it. This is a new, unopened product. Shipping will be via anonymous shipping using either Yu-Yu Mercari Bin or Rakuraku Mercari Bin. 《Product Description》 ◾️Manufacturer: SANWA SUPPLY ◾️Model Number: MM-ADUSBTC1 ◾️Color: Black This adapter converts headsets and microphones with a 3.5mm stereo mini-plug to USB Type-C. No sound card or drivers are required; simply plug it into the Type-C port for easy connection. It is less susceptible to noise from the computer and achieves clear, high-quality sound. It has a microphone mute and volume adjustment switch. 《Product Specifications》 Cable Length: Approximately 11cm Plug Shape: USB Type-C Audio Output Terminal: 3.5mm stereo mini-jack x 1 Microphone Input Terminal: 3.5mm stereo mini-jack x 1 Frequency Response: 20～20000Hz Bit Depth: 16bit Sampling Rate: 44.1kHz/48kHz Size: W29 x D70 x H12mm Weight: 20g Material: ABS resin 《Compatible Devices》 Windows-equipped (DOS/V) computers, Apple Mac series, Chrome OS-equipped computers 《Supported OS》 Windows 11・10・8.1・8 macOS (Sequoia) 15, macOS (Sonoma) 14, macOS (Ventura) 13, macOS (Monterey) 12, macOS (BigSur) 11, macOS 10.12～10.15, Mac OS X 10.3～10.11, Chrome OS #DDC #Home Appliances #Audio"