Spectrum Approved DOCSIS 3.1 and 3.0 Cable Modems

Below are all the modems that Spectrum has approved for their customers to purchase and use on their network, as of April 2023. Spectrum lists them on their website here:  Spectrum Approved Cable Modem List. Prices are updated every hour. There are over 70 different modems on that list, and we’ve gone through all of them to find the ones that can be bought at Amazon, Best Buy, or Walmart.

Spectrum doesn’t charge you for cable modems unless you want one with a built-in Wi-Fi router. Then they charge $5 a month to rent a modem with Wi-Fi. That’s $60 a year or $300 over 5 years. You can buy a new one that will pay for itself in about a year.

It’s easy to install. Just hookup the modem, open a web browser on an attached computer, and follow the on-screen instructions. Read more here at Spectrum: Activate Spectrum Modem Instructions

Spectrum Voice Customers: The modems below do not have telephone capabilities. So you’ll need to use the Spectrum-supplied modem for your phone service.

If you need further help with your decision or understanding some of the terms, see our Cable Modem Buying Guide.

Select your Spectrum speed plan below. This will allow you to get the maximum speed out of your plan. If you want to future-proof your purchase, as speed plans inevitably increase, we and Spectrum suggest selecting Internet Gig or DOCSIS 3.1 from the DOCSIS menu below.

Showing 1–10 of 34 results

- 76%
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ARRIS SB6190 Front View
ARRIS SB6190 Back View

ARRIS SB6190 SURFboard DOCSIS 3.0 Cable Modem

Best deal at: Amazon.com
$24.10
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 32 Downstream Channels
  • Puma 6 Chipset
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ARRIS SB6183 Front
ARRIS SB6183 Back

ARRIS SURFboard SB6183 DOCSIS 3.0 Cable Modem (renewed)

Best deal at: Amazon.com
$39.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
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Netgear CM500 Front
Netgear CM500 Back

Netgear CM500 DOCSIS 3.0 Cable Modem

Best deal at: Amazon.com
$57.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
- 45%
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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: Best Buy U.S
$71.99
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
- 45%
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Motorola MB8600 Front View
Motorola MB8600 Back View

Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem

Best deal at: Best Buy U.S
$76.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and Three 1 Gigabit Ethernet Ports
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Motorola MB7420 Front View
Motorola MB7420 Back View

Motorola MB7420 16×4 Cable Modem

Best deal at: Amazon.com
$77.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
- 26%
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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: Walmart.com
$87.71
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
  • Puma 6 Chipset
- 7%
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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
$92.99
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
  • One USB 2.0 Port
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Humax HGD310 Front View
Humax HGD310 Back View

Humax HGD310 DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$95.00
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
- 45%
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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: Best Buy U.S
$96.99
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 24 Downstream Channels

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