NAIM DAC-V1 Asynchronous USB Audio Converter | Accessories4less
HiFi Tube Stereo Preamp USB DAC Bluetooth Receiver S/PDIF D/A Audio Converter 843355444989 | eBay
Sound Blaster G3 Portable Plug-and-Play USB-C DAC Amp for PlayStation® 4, Nintendo Switch™ Gaming Consoles, PC, and Mac - Creative Labs (United States)
iFi Audio hip-dac2 Portable USB DAC and headphone amplifier at Crutchfield
Building A 'high-end' USB Audio DAC | Hackaday
Amazon.com: USB Audio Converter, Digital to Analog DAC Audio Converter with Coaxial/Optical Digital Output USB Audio Sound Card for Laptop or Desktop Systems, Plug and Play : Electronics