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 January 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.

Sorted by price: low to high

- 30%
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Motorola MB7420 Front View
Motorola MB7420 Back View

Motorola MB7420 16×4 Cable Modem

Best deal at: Amazon.com
$48.98
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
- 14%
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ARRIS SB6183 Front
ARRIS SB6183 Back

ARRIS SURFboard SB6183 DOCSIS 3.0 Cable Modem

Best deal at: Best Buy U.S
$59.00
  • 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: Best Buy U.S
$59.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
- 39%
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Motorola MB7621 Front View
Motorola MB7621 Back View

Motorola MB7621 24×8 Cable Modem

Best deal at: Walmart.com
$66.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 24 Downstream Channels
- 25%
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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
$74.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 32 Downstream Channels
  • Puma 6 Chipset
- 25%
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Humax HGD310 Front View
Humax HGD310 Back View

Humax HGD310 DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$90.00
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
- 17%
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Netgear CM700 Front View
Netgear CM700 Back View

NETGEAR CM700 High Speed DOCSIS 3.0 Cable Modem

Best deal at: Best Buy U.S
$99.99
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 32 Downstream Channels
  • Puma 6 Chipset
- 44%
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Hitron CODA Front View
Hitron CODA Back View

Hitron CODA DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$99.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
- 24%
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ARRIS SB8200 Front View
ARRIS SB8200 Back View

ARRIS SB8200 SURFboard DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$144.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
- 19%
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Motorola MB8600 Front View
Motorola MB8600 Back View

Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem

Best deal at: Walmart.com
$144.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and Three 1 Gigabit Ethernet Ports
- 25%
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Netgear CM1000 Front View
Netgear CM1000 Back View

NETGEAR CM1000 Gigabit Speed DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$149.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
- 27%
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ARRIS S33 Front View
Arris S33 Back View

ARRIS S33 SURFboard DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$159.95
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and One 1 Gigabit Ethernet Ports
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Netgear CM1100 Front View
Netgear CM1100 Back View

NETGEAR CM1100 Nighthawk Multi-Gig Cable Modem

Best deal at: Amazon.com
$174.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
- 26%
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Netgear CM1200 Front View
Netgear CM1200 Back View

NETGEAR CM1200 Nighthawk Multi-Gig DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$177.99
  • 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
- 14%
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Motorola MB8611 Front View
Motorola MB8611 Back View

Motorola MB8611 Ultra-Fast DOCSIS 3.1 Cable Modem with 2.5Gb Ethernet

Best deal at: Amazon.com
$189.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit Ethernet Port
- 6%
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Netgear CM2000 Front View
Netgear CM2000 Back View

NETGEAR CM2000 Nighthawk Multi-Gig 2.5Gbps DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$282.29
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit Ethernet Port

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