I’m not a cable guy, but I do try to go a few steps up the ladder from standard computer peripherals. I think most of the improvements in cables come from those first few steps and then you are into diminishing returns. Personally I don’t hear a difference in Ethernet from CAT 5 to CAT 7, but I do hear a slight improvement with usb cables. I like the Pangea line from Audio Advisor
Ethernet and USB cables
Do premium Ethernet and USB make a sonic difference? I have very good speaker and DAC to amp cables but, all the others are just inexpensive generic cables. I’m running Innuos Zenith MK III and about to try out a Phoenix USB. Just looking to get the most out of the system w/o throwing away more $ (unless it works!).