Arris TM822 (Series - TM822A) Touchstone Docsis 3.0 8x4 Ultra-High Speed Telephony Modem Backwards compatible with DOCSIS 1.0, 1.1, and 2.0 Flexible 8x4 downstream/upstream channel-bonding with superior throughput DOCSIS 3.0 certified IPv4/IPv6 modes for DOCSIS CM 10/100/1000 Base-T Ethernet