Xfinity Approved DOCSIS 3.1 and 3.0 Cable Modems
Below are all the modems that Xfinity has approved for their residential customers to purchase and use on their network, as of November 2023. Xfinity lists them on their website here: Xfinity Approved Cable Modem List. There are over 70 different modems on that list, and we’ve gone through all of them to find the ones that can be purchased at Amazon, Best Buy, or Walmart. Prices below are updated every hour.
If you’re paying $14 a month to rent a modem from Xfinity, that’s $168 a year, or $840 over 5 years. You can buy a new one that will pay for itself in less than four months. It’s easy to install. Just hook up the modem, and activate it on the Xfinity App. Read more at Xfinity here: Xfinity Activation Instructions
Xfinity/Comcast Business Customers: See our Comcast Approved Modems for Business page for supported modems.
Xfinity Voice/Phone/Triple Play Customers: See our Xfinity Approved Modems with Phone page for supported modems.
If you need further help with your decision or understanding some of the terms, see our Cable Modem Buying Guide.
Select your Xfinity speed plan below. If it’s not listed, choose a plan that’s higher than your current one. This will allow you to get the maximum speed out of your plan. Next, decide if you want a modem with a built in Wi-Fi router and what type. If you want to future-proof your purchase, as speed plans inevitably increase, we suggest selecting DOCSIS 3.1 from the DOCSIS menu below.
Showing 11–16 of 16 results
![Netgear CM1200 Front View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/netgear_cm1200_front-e1663632534633.webp)
![Netgear CM1200 Back View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/netgear_cm1200_back-e1663632564866.webp)
NETGEAR CM1200 Nighthawk Multi-Gig DOCSIS 3.1 Cable Modem
- DOCSIS 3.1
- No built in Wi-Fi router
- 32 Downstream Channels + 2 OFDM
- Four 1 Gigabit Ethernet Ports – 2 ports can be combined to double your wired speed
![Netgear CM1100 Front View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/netgear_cm1100_front-e1663632683266.webp)
![Netgear CM1100 Back View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/netgear_cm1100_back-e1663632714636.webp)
NETGEAR CM1100 Nighthawk Multi-Gig Cable Modem
- DOCSIS 3.1
- No built in Wi-Fi router
- 32 Downstream Channels + 2 OFDM
- Two 1 Gigabit Ethernet Ports
![Motorola MB8611 Front View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/motorola_mb8611_front-e1663632834463.png)
![Motorola MB8611 Back View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/motorola_mb8611-back-e1663632876425.webp)
Motorola MB8611 Ultra-Fast DOCSIS 3.1 Cable Modem with 2.5Gb Ethernet
- DOCSIS 3.1
- No built in Wi-Fi router
- 32 Downstream Channels + 2 OFDM
- One 2.5 Gigabit Ethernet Port
![Netgear CM2000 Front View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/netgear_cm2000_front-e1663633075697.webp)
![Netgear CM2000 Back View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/netgear_cm2000_back-e1663633098377.webp)
NETGEAR CM2000 Nighthawk Multi-Gig 2.5Gbps DOCSIS 3.1 Cable Modem
- DOCSIS 3.1
- No built in Wi-Fi router
- 32 Downstream Channels + 2 OFDM
- One 2.5 Gigabit Ethernet Port
![ARRIS S33 Front View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/arris_cm_s33_hero_right.webp)
![Arris S33 Back View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/arris_s33_back-e1663635715932.webp)
ARRIS S33 SURFboard DOCSIS 3.1 Cable Modem
- DOCSIS 3.1
- No built in Wi-Fi router
- 32 Downstream Channels + 2 OFDM
- One 2.5 Gigabit and One 1 Gigabit Ethernet Ports
![Motorola MB8600 Front View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/motorola_mb8600_front-e1663631777966.png)
![Motorola MB8600 Back View](https://www.buyacablemodem.com/wp-content/uploads/2022/09/motorola_mb8600_back-e1663631898381.png)
Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem
- DOCSIS 3.1
- No built in Wi-Fi router
- 32 Downstream Channels + 2 OFDM
- One 2.5 Gigabit and Three 1 Gigabit Ethernet Ports