Get $70 Discount On AudioQuest Audio Converter At Bestbuy. This AudioQuest Dragonfly DRAGONFLY 1.2 digital audio converter is designed to bypass the computers internal sound card and provide dynamic audio. The digitally controlled analog volume control simplifies use. It is compatible with PC and Mac as well as computers with a Linux operating system for use with the existing setup. The digital audio converter bypasses the computers internal sound card and directly drives headphones for use as a high-fidelity music source. It connects to a pre-amplifier or receiver via a 3.5 mm-to-RCA cable for wide-ranging use.