NETGEAR CM1100 NIGHTHAWK MULTI-GIG SPEED CABLE MODEM DOCSIS® 3.1 Works with Xfinity and others. Under 1 year old Delivers true Multi-Gig Internet speeds with link aggregation support Meets DOCSIS® 3.1 specifications and is backward compatible with DOCSIS® 3.0 networks Works right out of the box and supports all Internet speed tiers from XFINITY® from Comcast, Spectrum, and Cox®. You can easily self-activate without needing a service call. Save up to $156† per year by eliminating monthly cable modem rental fees Gigabit Ethernet Ports - Fastest wired speeds to connect your router or computer. create two home networks both capable of gigabit speeds and aggregate for the fastest Multi-Gig speeds. Supports IPv6 - Internet standard