10 BEST COMCAST MODEMS for sale in 2024 – compare between the best comcast modems on sale.

Rank Product Rating
1
ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity, Spectrum & others
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Product Highlights
  • Compatible with major U S Cable Internet Providers including Cox, Spectrum, Xfinity & others Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • DOCSIS 3 1 Cable Modem best for cable internet speed plans up to 2 Gbps. Note, a 2nd IP address is required from your cable internet provider to reach 2 Gbps
  • 32 downstream x 8 upstream DOCSIS 3 0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
  • Two 1-Gigabit Ethernet ports (Note, a 2nd IP address may be required by your cable internet provider to activate 2nd port)

$199.99 $149.00
2
NETGEAR Cable Modem CM500 - Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 300 Mbps | DOCSIS 3.0
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7,026 Reviews
Product Highlights
  • Compatible with all major cable internet providers: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
  • Save monthly rental fees: Model CM500 replaces your cable modem saving you up to $168/yr in equipment rental fees.
  • Built for fast speed: best for cable provider plans up to 300 mbps speed.
  • Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.

$62.99
3
ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem & AC1750 dual-band Wi-Fi Router with Voice, Certified for Xfinity Internet & Voice (white)
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Product Highlights
  • 4 products in 1: DOCSIS 3. 0 Cable Modem, AC1750 Wi-Fi Access Point, 4-Port Gigiabit Ethernet Router & Xfinity Telephony Modem.
  • Approved for use with Xfinity internet & voice service. Not compatible with any other cable internet provider.
  • 24 downstream x 8 upstream DOCSIS 3.0 channels, best for Xfinity internet speed plans up to 600 Mbps
  • 4 Gigabit Ethernet ports, 2 telephony ports for digital voice service

$219.99 $189.99
4
Motorola 24x8 Cable Modem, Model MB7621, DOCSIS 3.0. Approved by Comcast Xfinity, Cox, Charter Spectrum, Time Warner Cable, and More. Downloads 1,000 Mbps Maximum (No WiFi)
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434 Reviews
Product Highlights
  • Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps. Wirecutter rates this “the best modem for most people.” A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
  • This cable modem's one Gigabit Ethernet port connects to a WiFi router, computer, HDTV, game station, or streaming video device. Great for use with Whole Home WiFi or Mesh networks like eero, Google WiFi, and Orbi. (This cable modem does not have a built-in wireless router or telephone call capability. The Motorola MG7315, MG7540, MG7550, and MG7700 have a built-in wireless router.)
  • Requires cable Internet service.Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, BrightHouse, CableOne, SuddenLink, RCN, and other cable service providers. ELIMINATE CABLE MODEM RENTAL FEES UP TO 156 DOLLARS PER YEAR.(Savings are shown for Xfinity and vary by cable service provider. No cable modem is compatible with fiber optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and others. Model MB7621 has no phone jack.)
  • Setup is fast and easy using the Quick Start guide. Experienced USA-based Motorola customer support specialists are happy to help if you need them. Support is in English or Spanish.

$109.99 $77.98
5
MOTOROLA 8x4 Cable Modem, Model MB7220, 343 Mbps DOCSIS 3.0, Certified by Comcast XFINITY, Time Warner Cable, Cox, BrightHouse, and More (No Wireless)
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531 Reviews
Product Highlights
  • This 8x4 DOCSIS 3.0 cable modem provides speeds up to 343 Mbps, eight times faster than DOCSIS 2.0. A Full-Band Capture digital tuner ensures a faster, more reliable Internet.
  • Cable modem's Ethernet port connects to a computer, HDTV, game station, or wireless router. (This cable modem does not have a built-in wireless router or VoIP telephone adapter. The Motorola MG7310, MG7315, and MG7550 have a built-in wireless router.)
  • Requires cable Internet service. Certified by Comcast XFINITY, Time Warner Cable, Cox, BrightHouse, and other leading cable service providers for modem ownership programs that typically save rental charges of $120 or more per year
  • Setup is fast and easy with a few quick steps set out in a Quick Start guide. Experienced USA-based customer support specialists are there to help if you need them.

$46.99
6
ARRIS SURFboard SBG10 DOCSIS 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & others (black)
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287 Reviews
Product Highlights
  • 3 products in 1: DOCSIS 3 0 Cable Modem, AC1600 dual-band Wi-Fi Router, 2 Port Gigabit Ethernet Router (cable digital voice service not supported)
  • Compatible with major U S Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • 16 downstream & 4 upstream channels. Best for cable internet service plans up to 400 Mbps.
  • Wi-Fi 5 AC1600 dual-band concurrent Wi-Fi Router with 2 Gigabit Ethernet ports

$129.99 $118.96
7
Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black
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1,089 Reviews
Product Highlights
  • TOP INTERNET SPEEDS FOR ALL CABLE INTERNET SERVICES - Wirecutter recommends this as the best cable modem for people using Gigabit Internet plans. Built-in DOCSIS 3.1 and DOCSIS 3.0 32x8 capabilities give top Internet speeds for all cable Internet services, from the slowest to the fastest.
  • ELIMINATE UP TO 156 DOLLARS PER YEAR IN CABLE MODEM RENTAL FEES. (Savings are shown for Comcast Xfinity and vary by cable service provider.) Approved by Comcast Xfinity and Xfinity X1, Cox, and CableOne for all speeds including Comcast Gigabit services and Cox Gigablast. Not compatible with RCN. No cable modem is compatible with fiber optic, DSL, or satellite services, available from Verizon, AT&T, CenturyLink, Frontier, and others.)
  • WORKS WITH ANY WiFi ROUTER YOU LIKE - including Whole Home WiFi or Mesh routers like eero, Google WiFi, and Orbi. This cable modem does NOT have a built-in wireless router or telephone call capability.
  • A BROADCOM CHIPSET PROVIDES SECURITY FROM DENIAL OF SERVICE ATTACKS - a 10/100/1000 Gigabit Ethernet port allows connection of any SINGLE device with an Ethernet port including a router, Windows or Mac computer, HDTV, or game station.

$229.99
8
NETGEAR CM700 (32x8) DOCSIS 3.0 Gigabit Cable Modem. Max download speeds of 1.4Gbps. Certified for XFINITY by Comcast, Time Warner Cable, Charter & more (CM700) (Renewed)
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Product Highlights
  • Support Cable Internet Service plans up to 500 Mbps. Separate router required for WiFi. 32x8 channel bonding
  • DOCSIS 3.0 up to 32x faster download speeds than DOCSIS 2.0.Memory: 8 MB NOR flash and 128 MB RAM
  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES - Up to $120 per year. Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
  • Not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with bundled voice services. IPv6 next generation Internet addressing support

$89.00
9
NETGEAR Cable Modem CM1000 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 1 Gigabit | DOCSIS 3.1, Black (CM1000-1AZNAS)
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Product Highlights
  • Compatible with all major cable internet providers: Including certification by Xfinity by Comcast, COX, and Spectrum. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
  • Save monthly rental fees: Model CM1000 replaces your cable modem saving you up to dollar 168/year in equipment rental fees.
  • Built for ultimate speed: Best for cable provider plans up to 1 gigabit speed.
  • Works with any Wi-Fi router: Connect any Wi-Fi router to this modem's Ethernet port to support all your wireless devices.

$164.75
10
NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8
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Product Highlights
  • Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more. Requires Cable Internet Service
  • Not compatible with: Verizon, AT&T, or CenturyLink
  • Cable Modem only (no WiFi router).Memory: 8 MB NOR flash and 128 MB RAM
  • Support Cable Internet Service plans up to 300Mbps. Recommended for all speed tiers up to 500 Mbps. Separate router required for WiFi. 24x8 channel bonding

$129.99 $94.99

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