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It is physically the same as the '730, wire harness connectors and all. The difference is internal and is just an upgrade, all '730 functions are the same. It probably has more capabilities than a '730 but I don't have that info.
Thanks guys!
I guess I sould have waited I just found a 7730 and got it I want a spair one, I have a 7730 I may get me one of the others later if theya are better computer.
It's an updated number which means they probably updated a few parts or made the PCB a better design. It's just an update, it doesn't do anything special or doesn't do any other functions.