Sold on Amazon for $130. Features & details 3 products in 1: 8x4 DOCSIS 3. 0 cable Modem + AC1750 Wi-Fi router + Xfinity telephony Approved for use with Comcast Affinity internet & voice service with rdk-b technology to support next-gen products and services Does not support Xfinity home security or home control service without also having an Xfinity home router from Comcast that only Comcast can provide; not approved on any other cable internet Providers 24 DOWNLOAD and 8 UPLOAD channels ideal for Internet plans up to 600 Mbps; Comcast Xfinity service is required to use this product AC1750 Dual band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports for wired devices. 802. 11AC Wi-Fi speeds up to 1750 Mbps. Wi-Fi speeds listed are the maximum theoretical possible with the radio and antenna configuration. Throughput speeds will vary depending on distance, wireless network congestion, interference, and client capabilities. Not compatible with Xfinity Gigabit internet speed packages 2 telephone ports to support Xfinity voice; optional battery backup (sold separately) for placing and receiving voice calls during power outages; 2 Year limited With us Technical Support. Not compatible with Xfinity home security service Note, Comcast will not provision this model for Gig speed services. A DOCSIS 3. 1 modem, such as the ARRIS SB8200, is required for Gig speed service. Product information Max Download Speed: 1 Gbps , 24X8 Cable Modem / Telephone / AC1750 Router Product Dimensions2.25 x 8 x 9.4 inchesItem Weight3.35 poundsManufacturerARRIS Solutions, Inc.ASINB07Q57WJ34Customer Reviews4.2 out of 5 stars 214ReviewsBest Sellers Rank #325 in Computers & Accessories (See Top 100 in Computers & Accessories) #13 in Modem Router Combos