Yes they do, but call first, to make sure its thetype you need for yout you needs.
They of course rent them, but they also offer them for sale. Only cable modems, though, naturally.
Probably not, we were only offered a "rental" & were returning it since we purchased our own thru Amazon.
I know they have them, I don't know if they sell them without service.
Yes they sell as well as rent all types of internet/cable products.
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