I can report that you can be really clever .. and use a Sandisk USB OTG (on the go) 64Gb if you like ..
This way, you can use the same stick to connect to your Smartphone (Micro USB one end, USB the other)
Obviously, will work in laptop/PC as any other. I also used mine on my old Tyros 5.
Here's mine plugged (the micro USB connector is on opposite end to main one, slid away inside when not in use, also very compact)
Al.
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