In order to get the most out of your fast internet service, you are going to need a fast modem. A lot of companies let you rent one. You can also buy your own to save some money. The ARRIS Surfboard G54 is a DOCSIS 3.1 Multi-Gigabit Cable Modem and WiFi 7 Router for Xfinity and other high speed cable plans.
This modem & router has 4 Gigabit Ethernet ports and a 10Gb port. It offers up to 5000 sq.ft wireless coverage. It delivers WiFi 7 speeds up to 18Gbps. You can activate the modem using the SURFboard Central app.