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

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.

Spectrum Speed Plan

Wi-Fi Built In

DOCSIS

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
$35.95
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 16 Downstream Channels
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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
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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
- 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
- 34%
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Motorola MB7621 Front View
Motorola MB7621 Back View

Motorola MB7621 24×8 Cable Modem

Best deal at: Walmart.com
$72.45
  • 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
$75.00
  • DOCSIS 3.0
  • No built in Wi-Fi router
  • 32 Downstream Channels
  • Puma 6 Chipset
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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
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Hitron CODA Front View
Hitron CODA Back View

Hitron CODA DOCSIS 3.1 Cable Modem

Best deal at: eBay
$84.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
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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: eBay
$86.99
  • DOCSIS 3.0
  • AC1600 Wi-Fi 5 router built in
  • 16 Downstream Channels
- 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
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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: eBay
$95.52
  • DOCSIS 3.0
  • AC2350 Wi-Fi 5 router built in
  • 24 Downstream Channels
  • Puma 6 Chipset
- 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
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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: eBay
$105.99
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 16 Downstream Channels
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Netgear CM1000 Front View
Netgear CM1000 Back View

NETGEAR CM1000 Gigabit Speed DOCSIS 3.1 Cable Modem

Best deal at: eBay
$127.95
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
- 22%
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Motorola MB8600 Front View
Motorola MB8600 Back View

Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem

Best deal at: Amazon.com
$139.98
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and Three 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
- 32%
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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
$149.00
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 16 Downstream Channels
  • One USB 2.0 Port
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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
- 30%
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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: Walmart.com
$159.99
  • DOCSIS 3.0
  • AC1900 Wi-Fi 5 router built in
  • 24 Downstream Channels
- 32%
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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
$162.99
  • 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
- 3%
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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: eBay
$164.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit Ethernet Port
- 9%
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Netgear CM1100 Front View
Netgear CM1100 Back View

NETGEAR CM1100 Nighthawk Multi-Gig Cable Modem

Best deal at: Amazon.com
$168.28
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • Two 1 Gigabit Ethernet Ports
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ARRIS G34 Front View
ARRIS G34 Back View

ARRIS G34 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router

Best deal at: eBay
$169.99
  • DOCSIS 3.1
  • AX3000 Wi-Fi 6 router built in
  • 32 Downstream Channels + 2 OFDM
- 10%
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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
$199.00
  • 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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Motorola MG8702 Front View
Motorola MG8702 Back View

Motorola MG8702 DOCSIS 3.1 Cable Modem + AC3200 Dual Band WiFi Gigabit Router

Best deal at: eBay
$209.00
  • DOCSIS 3.1
  • AC3200 Wi-Fi 5 router built in
  • 32 Downstream Channels + 2 OFDM
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ARRIS G35 Front View
ARRIS G36 Back View

ARRIS G36 SURFboard DOCSIS 3.1 Gigabit Modem Plus Wi-Fi 6 Router

Best deal at: eBay
$239.99
  • DOCSIS 3.1
  • AX3000 Wi-Fi 6 router built in
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and Four 1 Gigabit Ethernet Ports
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ARRIS SBG8300 Front View
ARRIS SBG8300 Back View

ARRIS SBG8300 SURFboard DOCSIS 3.1 Gigabit Cable Modem & Wi-Fi Router

Best deal at: Amazon.com
$249.00
  • DOCSIS 3.1
  • AC2350 Wi-Fi 5 router built in
  • 32 Downstream Channels + 2 OFDM
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Netgear CAX30S Front View
Netgear CAX30S Back View

NETGEAR CAX30S Nighthawk DOCSIS 3.1 Cable Modem + WiFi 6 Router Combo, 2.7Gbps

Best deal at: eBay
$249.99
  • DOCSIS 3.1
  • AX2700 Wi-Fi 6 router built in
  • 32 Downstream Channels + 2 OFDM
  • Four 1 Gigabit Ethernet Ports – 2 ports can be combined to double your wired speed
  • One USB 3.0 Port
- 10%
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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
$269.99
  • DOCSIS 3.1
  • No built in Wi-Fi router
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit Ethernet Port
- 30%
Add to compare
ASUS CMAX6000 Front View
ASUS CMAX6000 Back View

ASUS CM-AX6000 DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router

Best deal at: Amazon.com
$279.99
  • DOCSIS 3.1
  • AX6000 Wi-Fi 6 router built in
  • 32 Downstream Channels + 2 OFDM
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Netgear C7800 Front View
Netgear C7800 Back View

NETGEAR C7800 Nighthawk DOCSIS 3.1 3.2Gbps Cable Modem + WiFi Router

Best deal at: eBay
$309.99
  • DOCSIS 3.1
  • AC3200 Wi-Fi 5 router built in
  • 32 Downstream Channels + 2 OFDM
  • Two USB 3.0 Ports
- 5%
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Motorola MG8725 Front View
Motorola MG8725 Back View

Motorola MG8725 DOCSIS 3.1 Cable Modem + WiFi 6 Router

Best deal at: Walmart.com
$379.99
  • DOCSIS 3.1
  • AX6000 Wi-Fi 6 router built in
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and Three 1 Gigabit Ethernet Ports
- 14%
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Netgear CAX80 Front View
Netgear CAX80 Back View

NETGEAR CAX80 Nighthawk DOCSIS 3.1 Cable Modem + WiFi 6 Router

Best deal at: Amazon.com
$429.99
  • DOCSIS 3.1
  • AX6000 Wi-Fi 6 router built in
  • 32 Downstream Channels + 2 OFDM
  • One 2.5 Gigabit and Four 1 Gigabit Ethernet Ports
  • One USB 3.0 Port
- 6%
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Netgear CBR750 Front View
Netgear CBR750 Back View

Netgear CBR750 Orbi Tri-Band WiFi 6 Mesh Router with Built-in Cable Modem

Best deal at: Amazon.com
$449.99
  • DOCSIS 3.1
  • AX4200 Wi-Fi 6 Mesh router built in
  • 32 Downstream Channels + 2 OFDM
  • Four 1 Gigabit Ethernet Ports

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