Owner's Manual
Page 45
... transfer performance and setting data between the PSR-E223/YPT-220 and a USB-equipped computer. A Yamaha UX16 or similar USB-MIDI interface (sold separately) must be bought at a musical instrument store, computer store or electrical appliance store. Reverse this order when you use the UX16 interface, install the driver supplied with the interface on those...
... transfer performance and setting data between the PSR-E223/YPT-220 and a USB-equipped computer. A Yamaha UX16 or similar USB-MIDI interface (sold separately) must be bought at a musical instrument store, computer store or electrical appliance store. Reverse this order when you use the UX16 interface, install the driver supplied with the interface on those...