JEDAC - yet another take on a DIY high-end USB Audio DAC
Aiyima Pcm2706 Es9023 Usb Audio Dac Sound Card Decoder Board Hi-fi Zero Noise I2s Decoding - Home Theater Amplifiers - AliExpress
M-Audio
HELM BOLT DAC/AMP - MQA Certified - HELM Audio
Prozor Usb Dac Audio Converter With Headphone Amplifier Coaxial S/pdif Converter Digital To Analog Usb Audio Sound Card - Audio & Video Cables - AliExpress
HiFi Tube Stereo Preamp USB DAC Bluetooth Receiver S/PDIF D/A Audio Converter | eBay
M-Audio Micro DAC USB Digital to Analog Converter MICRO DAC B&H
Cambridge Audio DacMagic 100 (Black) Stereo DAC with asynchronous USB input at Crutchfield
USB audio DAC
Trends Audio UD-10 USB audio converter review - [English]
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