Linsoul E1DA Cosmos ADC Grade A/B/C ES9822PRO Chip Analog to Digital Converter, with Aluminum Shell, OPA1612, USB-C Powered (Cosmos ADC, C) : Amazon.co.uk: Musical Instruments & DJ
E1DA 9038S G3 DAC Dongle Review - Samma3a Tech
Linsoul E1DA 9038S SUSUMU 3000 Edition USB DAC Headphone Amp with 2.5mm Balanced Output: Amazon.co.uk: Electronics & Photo
Archimago's Musings: REVIEW: E1DA #9038D6K Dongle DAC / Headphone Amp (Part I) - PCM DAC performance. And (potentially) higher dynamic range in Spatial Audio 2-channel fold-downs.
Archimago's Musings: EARLY LOOK: E1DA Cosmos ADC - affordable high performance measurements for the audio hobbyist!
PowerDAC v2.1 E1DA Headphone Amp PEQ DSP BLE DAC with 2.5/3.5 Adapter and Cables|Digital-to-Analog Converter| - AliExpress