Amazon.com: Fosi Audio Q4 Headphone Amplifier Mini Stereo DAC 24-Bit 192 KHz USB Optical Coaxial to RCA AUX Digital-to-Analog Audio Converter Adapter for Home Desktop Powered Active Speakers : Electronics
M-Audio
GLOW DAC: USB Powered Digital to Analog Converter – Glow Audio
HiFi AD1852 DAC Digital to Analog Converter Coaxial/ Optical/ USB Audio Adapter | eBay
TEAC AI-303 USB DAC Integrated Amplifier Black — Safe and Sound HQ
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
Sound Blaster Internal and External USB DAC and Amp Sound Cards and Buying Guide - Creative Labs (United States)
PCM270xC USB Stereo Audio DACs - TI | Mouser
USB audio DAC
Sound Blaster X4 - Hi-res 7.1 External USB DAC and Amp Sound Card with Super X-Fi® and SmartComms Kit for PC and Mac - Creative Labs (United States)
Fosi Audio Q4 Headphone Amplifier Mini Stereo DAC 24-Bit 192 KHz USB Optical Coaxial to RCA AUX Digital-to-Analog Audio Converter Adapter for Home Desktop Powered Active Speakers - Walmart.com
Henry Audio USB DAC - Eternal life for your stereo system!
5V DAC Decoder PCM2704 USB Audio Sound Card
iFi Audio ZEN DAC Signature V2 balanced USB-audio DAC
Building A 'high-end' USB Audio DAC | Hackaday
DacMagic 100 - Digital to Analogue Converter | Cambridge Audio US
eSYNiC USB DAC Audio Converter USB Audio Sound Card USB To Coaxial S/PDIF Digital To Analog Signal With Headphone Amp For PS3/4