Jerry - I run an iMic by Griffin on my G-3 AIO. It plugs into a USB port, is widely available, and costs $35. It works fine and there is no need to load any driver software. I have used it for both cocoaModem and MultiMode. It will work. - Duffey -- James R. Duffey KK6MC/5 Cedar Crest NM 87008 DM65