• COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
• SAVE MONTHLY RENTAL FEES: Model CM600 replaces your cable modem saving you up to $168/yr in equipment rental fees.
• BUILT FOR FAST SPEED: Best for cable provider plans up to 400 Mbps speed.
• WORKS WITH ANY WiFi ROUTER: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
• ETHERNET CONNECTIONS: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
• MODEMHNOLOGY: Engineered with 24x8 channel bonding and DOCSIS 3.0.

Open box. Item appears to be in unused, excellent condition. Powers on with no further testing. See images for item condition.  Everything included with this item can be seen in the images.