Digital Audio Blog: ESI U24 XL portable DAC/ADC and USB converter
ESI Dr. DAC prime AD/DA Converter with USB Interface | MUSIC STORE professional
Usb Sound Card 192k/24bit Recording And Playback Adc Sampling Dac Decoding Free Drive Mobile Phone Raspberry Pi Converter - Air Conditioner Parts - AliExpress
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DA2USB - Digital Audio to USB Interface
AD24QS and DA24QS - Audio ADC and DAC, 24 Bit / 192 kHz
M-Audio
ADC AK5572 – Very high performance audio AD-converter - nihtila.com
M-Audio Super DAC 24 bit/192 kHz USB Audio DAC with Analog & Digital Outputs - Walmart.com - Walmart.com
DS-DAC-10R - 1BIT USB-DAC/ADC | KORG (USA)
Korg DS-DAC-10R 1BIT USB-DAC/ADC Software Analog Convertor for sale online | eBay