Get the fastest internet speeds of today and tomorrow with a DOCSIS 3.1 cable modem. Works with US Cable Internet Providers Xfinity® from Comcast, Spectrum®, Cox® & more (not compatible with Cable bundled voice services). Certified with Xfinity with speeds up to 800Mbps, Spectrum service of 1Gbps, and with Cox service speeds of 1Gbps.Wireless router not included.