330s upgrade memory

[TerryB]

I have a new xl 330s. Where do I purchase additional memory and how do I install it?

 

[Z28]

xl330s memory

I have been reading a lot about the 330s. There is no way to attach memory to it without opening it up and doing some kind of electronic modification. Perhaps a guru could figure out some way to piggyback something external through the unit's usb connector.