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 2022. 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, Walmart or eBay. (We only show new eBay modems that can be returned and have free shipping.) 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.

Xfinity Speed Plan

Wi-Fi Router Built In

Sorted by price: low to high

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ARRIS SB6183 Front
ARRIS SB6183 Back

ARRIS SURFboard SB6183 DOCSIS 3.0 Cable Modem

Best deal at: eBay
$39.95
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
- 33%
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Netgear CM500 Front
Netgear CM500 Back

Netgear CM500 DOCSIS 3.0 Cable Modem

Best deal at: Best Buy U.S
$39.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
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ARRIS SB6190 Front View
ARRIS SB6190 Back View

ARRIS SB6190 SURFboard DOCSIS 3.0 Cable Modem

Best deal at: eBay
$49.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 32 Downstream Channels
  • Puma 6 Chipset
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Motorola MB7420 Front View
Motorola MB7420 Back View

Motorola MB7420 16×4 Cable Modem

Best deal at: eBay
$49.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
- 30%
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Netgear C6250 Front View
Netgear C6250 Back View

NETGEAR C6250 DOCSIS 3.0 Cable Modem + 1.6Gbps WiFi Router

Best deal at: Amazon.com
$69.99
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
  • One USB 2.0 Port
- 32%
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Motorola MB7621 Front View
Motorola MB7621 Back View

Motorola MB7621 24×8 Cable Modem

Best deal at: Amazon.com
$74.98
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 24 Downstream Channels
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ARRIS SBG10 Front View
ARRIS SBG10 Back View

ARRIS SBG10 SURFboard DOCSIS 3.0 Cable Modem & Wi-Fi Router

Best deal at: eBay
$79.00
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
  • Puma 6 Chipset
- 23%
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Motorola MG7540 Front View
Motorola MG7540 Back View

Motorola MG7540 16×4 Cable Modem plus AC1600 Dual Band Wi-Fi with DFS

Best deal at: Walmart.com
$99.99
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
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Netgear CM700 Front View
Netgear CM700 Back View

NETGEAR CM700 High Speed DOCSIS 3.0 Cable Modem

Best deal at: Amazon.com
$109.00
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 32 Downstream Channels
  • Puma 6 Chipset
- 7%
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ARRIS SBG7400AC2 Front View
ARRIS SBG7400AC2 Back View

ARRIS SBG7400AC2 SURFboard DOCSIS 3.0 Cable Modem & Wi-Fi Router

Best deal at: Amazon.com
$110.97
  • DOCSIS 3.0
  • AC2350 Wi-Fi 5 router built in
  • 24 Downstream Channels
  • Puma 6 Chipset
- 49%
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Motorola MG7550 Front View
Motorola MG7550 Back View

Motorola MG7550 16×4 Cable Modem plus AC1900 Dual Band Wi-Fi with Power Boost and DFS

Best deal at: Walmart.com
$110.99
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 16 Downstream Channels
- 26%
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Motorola MG7700 Front View
Motorola MG7700 Back View

Motorola MG7700 24×8 Cable Modem plus AC1900 Dual Band WiFi Gigabit Router with Power Boost

Best deal at: Amazon.com
$148.73
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 24 Downstream Channels
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ARRIS SBG7600 Front View
ARRIS SBG7600AC2 Back View

ARRIS SBG7600AC2 SURFboard DOCSIS 3.0 Cable Modem & Wi-Fi Router

Best deal at: eBay
$154.90
  • DOCSIS 3.0
  • AC2350 Wi-Fi 5 router built in
  • 32 Downstream Channels
  • Puma 6 Chipset
- 28%
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Netgear C7000 Front View
Netgear C7000 Back View

NETGEAR C7000 Nighthawk DOCSIS 3.0 Cable Modem +1.9Gbps WiFi Router

Best deal at: Amazon.com
$159.00
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 16 Downstream Channels
  • One USB 2.0 Port

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