Newish product

auxinput, sometimes I use a MacBook and I don't experience and and buzz or hum which I guess is good. I don't quite understand the timing or clocking issue you mention. How would I know if that's a problem? I'll need to research and learn a bit.

Any recommendations on a good quality USB cable to purchase?

anything really (as long as it is not made out of Chinese drywall) - put your $$ into a reclocker as per above and look at or test the offerings from Uptone Audio (no affiliation)

Anker makes a good USB cable as do others

all you need is to get the stream of bits transferred and not get so much noise that bits are altered, and avoid gnd loops

digital is not analog...

BTW, linear power supplies are another place to put $$