Better yet, buy with amex blue, pm with the lowest price online (I've found around $100) and send in the MIR, you'll get it for $70 + tax.
dunno if it will work though.
Sometimes the choices of Cable Modem is not up to us.
I recently bought the Linksys modem since Cox website says it is compatible but turn out that is a lie.
They actually only support Toshiba and Motorola modem.
So I might have to purchase this one instead.