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In order to come up with the Best Computer Networking Modems (2021), our intelligent platforms and experts have taken many criteria into account such as product usability, features that meet buyers needs and give buyer satisfaction, defect and deficiency-free, standards conformance, affordability, dependability, design quality, quality conformance to user requirements and guidlines, safety, actual buyer satisfaction and many others. It is worth to mention that each user has different needs so please use the below benchmarking as a guideline and not as a gospel. Nevertheless, in the below ranking you can definitely find the overall best ones despite your needs.

Our brilliant platforms and skillful high-tech gurus work hard to identify the best product options. We believe that our review benchmarking can help you simplify your purchase decision and make a pick among the very Best Computer Networking Modems (2021).

Best Computer Networking Modems

Best Choice No. 1
NETGEAR Gigabit Cable Modem (32×8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)
  • Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for Wi-Fi
  • Docsis 3. 1 up to 10x faster download speeds than DOCSIS 3. 0. Docsis 3. 1 is OFDM 2×2+ DOCSIS 3. 0 32×8 channel bonding
  • Eliminate monthly cable Modem rental fees – up to $156 per year. Meets DOCSIS 3. 1 specifications and is backward compatible with DOCSIS 3. 0 networks
  • System Requirements- Cable broadband Internet service, Please check your cable Internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS 3.1 service, otherwise this modem will only work as a DOCSIS 3.0 modem,Microsoft Windows 7, 8, 10, 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
  • CM1000-1AZNAS is not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with cable bundled voice services
Best Choice No. 2
NETGEAR CM500-100NAR DOCSIS 3.0 Cable Modem with 16×4 Max Download speeds of 680Mbps. Certified for XFINITY by Comcast, Time Warner Cable, Cox, Charter & More (Renewed)
  • Netgear Certified Refurbished product is manufacturer refurbished to work and look as new with 90 Day Warranty and email support. All accessories are included with limited documentation and additional information online.
  • Eliminate monthly cable modem rental fee’s ($120 or more a year).
  • DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port.
  • Up to 680Mbps download and upload speed. Separate router required for WiFi. 16×4 channel bonding
  • Netgear Refurbished product may have a removed serial number. You will need to state the product is refurbished (state the full part number) if emailing customer support. See the attached (image) flyer to obtain the Serial Number and MAC Address information that maybe needed by your Cable provider before contacting them.
SaleBest Choice No. 3
ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity, Spectrum & others , White , Max Internet Speed Plan 2000 Mbps
  • 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 capable of link aggregation
  • 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
SaleBest Choice No. 4
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)
  • 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.
  • Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate Wi-Fi router.
Best Choice No. 5
NETGEAR Nighthawk Cable Modem CM1200 – Compatible with All Cable Providers| For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet Ports | DOCSIS 3.1, Black (Renewed)
  • 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 CM1200 replaces your cable modem saving you up to dollar 168/yr in equipment rental fees.
  • Built for ultimate speed: best for cable provider plans up to 2 gigabits speed.
  • Works with any wifi router: Connect any WiFi router to this modem’s Ethernet port to support all your wireless devices.
  • Versatile connections: 4 Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices.
Best Choice No. 6
ARRIS Surfboard SB6190-RB DOCSIS 3.0 Cable Modem, White (Renewed)
  • Requires cable internet service. Compatible with major U.S. Cable Providers like Xfinity, Spectrum, Cox, Suddenlink, Mediacom, etc. Not compatible with ATT, Verizon or CenturyLink.
  • 32 DOWNLOAD & 8 UPLOAD channels to future proof your modem as your Cable ISP enhances service offerings. Recommended for plans of 300 Mbps and above
  • Supports IPv4 and IPv6 – the latest Internet standard
  • 90 Day Warranty. ARRIS Certified Refurbished. US Technical support
Best Choice No. 7
NETGEAR Cable Modem CM600 – Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24×8
  • 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. 24×8 channel bonding
  • DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port. DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
Best Choice No. 8
ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum & Others.
  • MULTI-GIG NETWORKING: The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network
  • Cable internet service required. Does NOT include Wi-Fi and does not support cable digital voice service.
  • DOCSIS 3.1 Cable Modem approved for cable internet speed plans up to 2.5 Gbps
  • 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
  • Connects to any existing Wi-Fi router for blazing-fast internet.
SaleBest Choice No. 9
Motorola 24×8 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)
  • 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 1 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.
  • Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A 2-year warranty plus rugged lightning and power surge circuits protect your investment. Includes phone and web support by friendly, professional USA-based technical support specialists.
SaleBest Choice No. 10
NETGEAR DOCSIS 3.1 Gigabit Cable Modem. Max download speeds of 6.0 Gbps, For XFINITY by Comcast, Spectrum, and Cox. Compatible with Gig-Speed from Xfinity (CM1000)
  • Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for WiFi.
  • DOCSIS 3.1 up to 10X faster download speeds than DOCSIS 3.0. DOCSIS 3.1 is OFDM 2×2+ DOCSIS 3.0 32×8 channel bonding
  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES – Up to $120 per year;32 downstream and 8 upstream channels for DOCSIS 3.0 connection
  • Not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with bundled voice services.
  • Compatible with Xfinity from Comcast, Cox, Mediacom Cable, and more.

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