Kind of odd that the OP claims he has good cables between his other components but is asking if good cables matter to a server. Any good quality component can benefit from better cables, especially a source component
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!).