Hi ,
You will need a USB cable TYPE A > TYPE B and a PC with a copy of the R3 Sound Editor loaded on it . Once the R3 and PC are connected you can load different patches into your R3 via the editor .
Eat Static .
Korg R3 EMX1 KP3 miniKP KO1
Moog LP II CP251 MF-101
DSI EVOLVER MOPHO
ROLAND SP404SX JUNO-G