Thanks Guys,
I don't actually have the audiophile version, so, I checked the plugs on the usb drives that I do have.
Sort of got a bit confusing as an old Seagate back up drive I have, only had a single plug at one end, whereas the pg usb's have a double.
I also have a new Seagate usb, and on closer inspection of the cable it has an icon with a diagram and an ss written on it , which my old Seagate and the pg drives don't have. So yes, I believe they are only usb 2. Thanks for that.

So is it really only that usb 3 loads the real tracks a tiny bit faster than usb 2, but makes no difference to the actual playback of the real tracks because the real tracks actually get loaded in. ie it's the computer that's the important part, not how quickly you load the tracks in.

I'm sort of getting myself a bit confused with some of the software synths I used to use a few years back, that used streaming, and I think maybe drive speed would have mattered?

So really, usb 3 speed is more important if you're using it for copying or backing up large amounts of data.

Great, you may have saved me money buying additional usb3 drive. haha

Thanks guys for the help.

best wishes
rikki

BIAB 2025
Korg PA5X
Yamaha sx900