ARRIS SURFboard mAX (8x4) DOCSIS 3.0 Cable Modem, 343 Mbps Max Speed, Xfinity Telephone Capable for 2 Lines, Certified for Comcast Xfinity Only (TM822R)

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Compatible with Xfinity Voice & Internet Service Download speeds up to 343 Mbps..DOCSIS 3.0 Cable Modem. 2 Year Warranty.Eight download and four upload channels..Battery back up capable (battery not included).2 carrier-grade Voice over IP (VoIP) Lines.IPv4 & IPv6 Support.1 Gigabit Ethernet Port. Telephone Port:2



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