Quilty-Louise

I THINK it should only need the PED Basic card reader box and memory
cards IF your going to use the memory cards to retrieve the designs
from.

Since the 770 has USB you should be able to access your designs
from the USB.

However since neither of my Brother machines are the 770 I am
NOT an expert on that part. My older Brother machine NEEDS the
PED Basic card reader so that I can load the designs on the rewritable
memory cards to use on the machine.
My newer Brother has a cable to connect it directly to the computer
to access the designs.

Neither of them use USB.