NLunow

I had both and cannot tell the difference. But like above mentioned the Serial to USB convertor adapter cable is very common in managing switches and routers. I had a few. Ultimately went to USB as I bought one and have a Serial as backup.

I bought them from Insteon where I still/again buy my hardware. Never had to worry about batteries again.

I too had a misserable time upgrading and dropped it at one point. When my wife wenton a trip I dropped the ISY and started over with a new USB interface. There are some things not empesized and I overlooked them. When I did the logical steps upgrading was a 10 min process and it is still going well, 5 months later. I had to restart EISY only after my UPS ran out of power on a power outage. Michel contacted me twice to check on me. I mean who does that. Your stuff will work, and work very well.