Best Modems For Comcast Xfinities In September 2026

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Here, we’ll review the top 10 Best Modems For Comcast Xfinities on the market today. We’ll provide an overview of the pros and cons of each product. Read on for our selection of Best Modems For Comcast Xfinities.

To help you in your search, we have completed this list of the Best Modems For Comcast Xfinities.

Top Rated Best Modems For Comcast Xfinities Of 2026

Rank	Product Name	Score
1	MOTOROLA 8x4 Cable Modem, Model MB7220, 343 Mbps DOCSIS 3.0, Certified by Comcast Buy Now	9.7 Buy Now
2	NETGEAR N600 (8x4) WiFi DOCSIS 3.0 Cable Modem Router (C3700) Certified for Xfinity Buy Now	9.5 Buy Now
3	MOTOROLA 16x4 Cable Modem, Model MB7420, 686 Mbps DOCSIS 3.0, Certified by Comcast Buy Now	9.1 Buy Now
4	NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including Xfinity Buy Now	8.8 Buy Now
5	MOTOROLA MG7315 8x4 Cable Modem Plus N450 Single Band Wi-Fi Gigabit Router Buy Now	8.6 Buy Now
6	MOTOROLA MG7540 16x4 Cable Modem Plus AC1600 Dual Band Wi-Fi Gigabit Router Buy Now	8.3 Buy Now
7	Netgear C6300-100NAS AC1750 (16x4) DOCSIS 3.0 WiFi Cable Modem Router Combo (C6300) Certified Buy Now	8.1 Buy Now
8	ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity Buy Now	7.8 Buy Now
9	ARRIS Surfboard SBG10 DOCSIS 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router Buy Now	7.5 Buy Now
10	Netgear C6250-100NAS AC1600 (16x4) WiFi Cable Modem Router Combo (C6250) DOCSIS 3.0 Certified Buy Now	7.2 Buy Now

1. MOTOROLA 8x4 Cable Modem, Model MB7220, 343 Mbps DOCSIS 3.0, Certified by Comcast

• 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.)
• 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.
• Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. a two-year warranty plus rugged lightning and power surge circuits protect your investment.
• 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.
• 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

2. NETGEAR N600 (8x4) WiFi DOCSIS 3.0 Cable Modem Router (C3700) Certified for Xfinity

• Ideal for streaming hd videos, faster downloads, and high speed online gaming
• Docsis 3.0 unleashes 8x faster download speeds than docsis 2.0
• Eliminate monthly cable modem rental fees up to $120 per year
• Two in one docsis 3.0 cable modem + wifi router with 2 gigabit ethernet ports and 1 usb 2.0 port.system requirements microsoft windows 7, 8, vista, xp, 2000, mac os, or other operating systems running a tcp/ip network. microsoft internet explorer 5.0, firefox 2.0, safari 1.4, or google chrome 11.0 browsers or higher
• Required for the fastest cable internet speed tiers.use with an n300 adapter like netgear wna3100 for maximum performance
• Up to 340mbps modem speed and dual band n450 (2.4ghz & 5ghz) wifi speed. 8x4 channel bonding, denial of service (dos) attack prevention

3. MOTOROLA 16x4 Cable Modem, Model MB7420, 686 Mbps DOCSIS 3.0, Certified by Comcast

• 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.
• Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. a two-year warranty plus rugged lightning and power surge circuits protect your investment.
• Cable modem's ethernet port connects to a computer, hdtv, game station, or wireless router. (this model mb7420 cable modem does not have a built-in wireless router and does not have a telephone adapter or phone jack. the motorola mg7310, mg7315, mg7540 and mg7550 have a built-in wireless router.)
• This 16x4 docsis 3.0 cable modem provides speeds up to 686 mbps, sixteen times faster than docsis 2.0. a full-band capture digital tuner ensures a faster, more reliable internet.
• Requires cable internet service. certified by comcast xfinity for residential speeds up to extreme 300, by comcast business for speeds up to deluxe 250, time warner cable, cox, charter spectrum, brighthouse, and other leading cable service providers for modem ownership programs that typically save rental charges of $120 or more per year

4. NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including

• 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 cable bundled voice services
• Built for fast speed: best for cable provider plans up to 400 mbps speed
• Modem technology: engineered with 24x8 channel bonding and docsis 3.0
• Save monthly rental fees: model c7000 replaces your cable modem and wifi router saving you up to $150/yr in equipment rental fees. system requirements cable broadband internet service, check your cable internet service provider web site for data speed tier compatibility, not compatible with cable bundled voice services, microsoft windows 7, 8, vista, xp, 2000, mac os,...
• Fast wi fi performance: get up to 1800 sq ft wireless coverage and 30 devices connected with ac1900 speed (up to 1900 mbps)
• Versatile connections: 4 gigabit ethernet ports and 2 usb ports give you fast wired connections to your computer, printer, game box, storage drive, and other devices

5. MOTOROLA MG7315 8x4 Cable Modem Plus N450 Single Band Wi-Fi Gigabit Router

• Built-in high-speed wi-fi router with n450 wi-fi and power boost provides internet access for wi-fi devices including smartphones, notebooks, tablets, game stations, hdtvs, amazon echo, google home, chromecast, roku, amazon fire tv, and apple tv. four 10/100/1000 gigabit ethernet lan ports provide wired connections to windows and mac computers, hdtvs, game stations, str...
• 8x4 docsis 3.0 cable modem plus a built-in n450 single band (2.4 ghz) wi-fi gigabit router with four gigabit (gige) ethernet ports, a firewall, and more. this product is recommended for docsis 3.0 and 2.0 cable services. for docsis 3.0 services, this modem provides actual cable internet service speeds up to 145 mbps. a broadcom cable modem chipset provides security from...
• Wireless power boost adds high-performance wi-fi power amplifiers to boost the wireless signals to the legal limit, giving a significant boost in speed and range. in addition, anybeam beamforming focuses the signal on wireless clients to further enhance performance and range.
• Requires cable internet service. approved by and for use with comcast affinity and xfinity x1, cox, charter spectrum, time warner cable, brighthouse, wow!, cable one, rcn, mediacom and other cable service providers. eliminate cable modem rental fees up to 132 dollars per year. (savings are shown for affinity and vary by cable service provider. no cable modem is compatib...
• Integrating the cable modem and router creates a more reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk space. the vertical design further minimizes shelf space, improves cooling, and extends product life while looking great in any home or office.

6. MOTOROLA MG7540 16x4 Cable Modem Plus AC1600 Dual Band Wi-Fi Gigabit Router

• Integrating the cable modem and router creates a reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk space. the vertical design minimizes shelf space and improves cooling while looking great in any home or office. a two-year warranty plus rugged lightning and power surge circuits protect your investment. includes phone and we...
• The router can work on wifi dfs frequencies, unlike most routers, so it is much less vulnerable to wifi interference from neighbors. anybeam beamforming at both 2.4 ghz and 5 ghz frequencies focuses the signal on wireless clients to further enhance performance and range.
• Built-in high-speed wifi router with ac1600 wi-fi provides internet access for wifi devices including smartphones, notebooks, tablets, game stations, hdtvs, amazon echo, google home, chromecast, roku, amazon fire tv, and appletv. four 10/100/1000 gigabit ethernet lan ports provide wired connections to windows and mac computers, hdtvs, game stations, streaming tv devices...
• 16x4 docsis 3.0 cable modem plus a built-in ac1600 dual band (2.4 ghz and 5 ghz) wifi gigabit router with four gigabit (gige) ethernet ports, a firewall, and more. this product is recommended for actual cable internet service speeds up to 375 mbps. a broadcom cable modem chipset provides security from denial of service attacks.
• Requires cable internet service. approved by comcast xfinity and xfinity x1, cox, charter spectrum, brighthouse, wow!, cableone, rcn, mediacom and other cable service providers. eliminate cable modem rental fees up to 156 dollars per year. (savings are shown for xfinity and vary by provider). not compatible with verizon, at&t, centurylink and other fiber optic, dsl or s...

7. Netgear C6300-100NAS AC1750 (16x4) DOCSIS 3.0 WiFi Cable Modem Router Combo (C6300) Certified

• Compatible with xfinity from comcast, spectrum, cox, cableone & more
• Ideal for streaming hd videos, faster downloads, and high-speed online gaming
• Three-in-one docsis 3.0 cable modem + ac1750 wifi router+ 4 gigabit wired switch
• Up to 680mbps modem speed and dual-band ac1750 (2.4ghz & 5ghz) wifi speed. 16x4 channel bonding/ approved for plans up to 300 mbps
• Works with cable internet providers like xfinity from comcast, cox, cablevision and more (not compatible with cable bundled voice services)
• Docsis 3.0 unleashes 16x faster download speeds than docsis 2.0

8. ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity

• Compatible with major u s cable internet providers including cox, xfinity & others not compatible with att, verizon, centurylink or other dsl or fiber internet providers
• Cable internet service required does not inlcude wi-fi and does not support cable digital voice service
• 32 downstream x 8 upstream docsis 3 0 bonded channels, 2 downstream x 2 upstream ofdm docsis 3 1 channels
• Docsis 3 1 cable modem best for cable internet speed plans up to 1 gbps
• Two 1-gigabit ethernet ports capable of link aggregation

9. ARRIS Surfboard SBG10 DOCSIS 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router

• 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
• Setup and manage your network with the surfboard manager app
• 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)
• Wi-fi 5 ac1600 dual-band concurrent wi-fi router with 2 gigabit ethernet ports
• 16 downstream & 4 upstream channels best for cable internet service plans up to 300 mbps cable internet service required

10. Netgear C6250-100NAS AC1600 (16x4) WiFi Cable Modem Router Combo (C6250) DOCSIS 3.0 Certified

• Ideal for streaming hd content, fastest downloads, and high-speed online gaming. system requirements:microsoft windows 7, 8, 10, vista, xp, 2000, mac os, unix, or linux. use laptop with 3x3 450 mbps adapter like centrino 6300/5300 for maximum performance
• Up to 680mbps modem speed and dual-band ac1600 (2.4ghz & 5ghz) wifi speed. 16x4 channel bonding/ approved for plans up to 300 mbps
• Docsis 3.0 unleashes 16x faster download speeds than docsis 2.0
• Netgeasr genie app +content filtering parental controls allow you to easily manage your network from your mobile device.microsoft internet explorer 5.0, firefox 2.0, safari 1.4, or google chrome 11.0 browsers or higher
• Three-in-one docsis 3.0 cable modem + ac1600 wifi router+ 2 gigabit wired switch
• Compatible with xfinity from comcast, spectrum, cox, cableone & more