Check the listing for details. Sabrent USB-SBCV External 2.1 Surround Sound Adapter. Condition: New. Listed at 10.50 USD. The Sabrent USB-SBCV is a compact, plug-and-play USB 2.0 external sound adapter that enables 2.1-channel stereo output and microphone input without the need for drivers. Designed to quickly replace a failed internal sound card or add audio functionality to systems lacking it, this adapter connects via USB Type-A and offers both 3.5mm audio out and mic in jacks. Built-in buttons for volume control, mic mute, and speaker mute are paired with LED indicators for intuitive control. It’s compatible with a wide range of operating systems including Windows (98SE through Windows 10), macOS, and Linux. Ideal for desktops, laptops, servers, and thin clients, the USB-SBCV is a reliable and cost-effective audio solution in a compact housing that fits in your pocket. No external power or software.