With my network switch, I can easily hear the difference between two high quality PSU’s. So it’s not just the switch itself that changes the sound, but also the power supply powering the switch.
Network Switches
Here are a few...
Melco S100 (just announced) https://www.melco-audio-masters.com/uploads/1/0/1/5/101505220/mel_2073_s100_a4_2pp_info_sheet_v3.pdf
SOtM sNH - 10G https://www.sotm-audio.com/sotmwp/english/portfolio-item/snh-10g/
The Linear Solution Reference Audio Switch https://thelinearsolution.com/ref_swtch.html
Feel free to add others.
Melco S100 (just announced) https://www.melco-audio-masters.com/uploads/1/0/1/5/101505220/mel_2073_s100_a4_2pp_info_sheet_v3.pdf
SOtM sNH - 10G https://www.sotm-audio.com/sotmwp/english/portfolio-item/snh-10g/
The Linear Solution Reference Audio Switch https://thelinearsolution.com/ref_swtch.html
Feel free to add others.