MB8611 Ultra-Fast DOCSIS 3.1 Cable Modem with 2.5Gb EthernetSupporting the only standard that can deliver speeds over 1 Gbps/sec, this DOCSIS 3.1 Cable Modem has been approved for all multi-Gigabit speed tiers by Comcast Xfinity, Charter Spectrum, and Cox. The MB8611 is equipped to keep you connected, now and in the future, with backwards compatibility to 32x8 DOCSIS 3.0. A speedy 2.5GbE port enables faster, more reliable Internet for lag-free streaming, gaming, and more!* Actual speeds depend on your cable modem service and the speed of your Ethernet LAN ports.