Good evening to all. Been using the time machine for backing up my MacBook Air using an old external hdd that I had left over from when I was using windows 10. This drive is quite old so been looking for a new one on line Amazon. I notice that there are thunderbolt cables to connect the external hdd to th MacBook is that correct?. If so are they more responsive than the old usb cables. So before I jump into the purchase of a new ex hdd any advice Please. Old fashioned usb cable or thunderbolt cable Thanks once again David.