I bought a D-Link DOCSIS 3.0 (DCM-301) cable modem compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision and others to get it to be used with OPTIMUM. I wasn't sure if this would work with Optimum Wifi Internet in the New York/New Jersey area. I am VERY SATISFIED with my purchase now because it works with OPTIMUM. The speed is amazing! I used to rent a MODEM ($10/month) from Optimum, now I save $10/month on my internet bill. I also use a router, NETGEAR N 900 Wireless Dual Band Gigabit Router ($77.95) with this MODEM ($35.15) and it works great. I have more security and no more modem rental fees! The Optimum engineer was amazed to find that this worked perfectly. The Optimum website does not list this modem on their website (very bad). 1504726939&sr=8-1&keywords=NETGEAR+N+900+Wireless+Dual+Band+Gigabit
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