Grace Digital ACC-ETHRNT Grace Digital USB to Ethernet RJ45 Adapter Allows any Grace Digital Internet radio with a USB jack to connect directly to standard ethernet (RJ45) jacks Current Grace Internet radios that support this adapter are: GDI-IRC6000/6000W, GDI-IRN1941, GDI-IRN4500m, GDI-IRMS300. Up and running in minutes. Plug the adapter into the radio and the router. Turn the radio off then back on. You are now connect!