Archimago's Musings: Using low-power Beelink Mini S as Linux Roon streamer - HQPlayer (PCM 8x, DSD256), and HDMI multichannel. (A superior DIY M-Scaler?)
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Amazon.com: LiNKFOR USB to SPDIF Coaxial RCA and 3.5mm Headphone Jack Converter USB DAC Optical Audio Adapter USB DAC PCM for Windows Mac PS4 PS3 : Electronics
Alc5686 Dongle Type C Dac Headphone Amp Pcm 32bit 384khz 2.5/3.5/4.4mm Hifi Balanced Audio Decoding Adapter For Android Win10 - Earphone Accessories - AliExpress