Someone else mentioned a Beelink mini pc, which is a good idea for someone who may not be in neck deep measuring PC hardware.
- Get a AMD Ryzen based Beelink mini pc. The idea is to get a higher performance 6 or 8 core ones that are barely alive, at 1 or 2 % when you're streaming or playing music In other words, don't get a goofy low perf cpu and overwork it.
- Put it on a high quality linear power supply. Keces makes high quality ones, for example.
- Undervolt cpu/apu whilst maintaining stable operation (if pc hardware noob, skip this step)
- Disable Bluetooth, disable wifi. Use a ifi Ethernet filter before plugging in Ethernet cable
- Introduce a Audioquest jitterbug or one those chifi holo alternatives on the USB output.
- Plug in the dac. Install DAC driver. Enable ASIO always.
There is your audiophile PC streamer transport.