from the roland site:
"Connect the GW-7 to a computer or USB-equipped external device with one simple USB cable, and transfer data back and forth quickly and easily. Keep your GW-7 well stocked with fresh songs and Styles by loading new Styles and Standard MIDI Files. Save your compositions and arrangements via USB."

What do they mean by "USB equipped external device"? . Ideas anyone???
Can I for example use a USB key?
hehe