How can I fix USB connection issues on a late 2013 27" iMac
My external drives keep on disconnecting when plugged into my iMac and when charging an iPhone it gets constantly disconnected and connected. Resetting the SMC didn't help. All ports have the same issue. Can it be corrected through software or can it be improved by changing the USB for newer / better ones?
Otherwise the computer is still really great so I'd have to have to pay a few thousand bucks just to get this solved...
iMac 27″, macOS 10.15