Are you in search of the ideal best netgear docsis 3 0 cable modem cm400? Our team has dedicated considerable time and effort to meticulously research the market, aiming to present you with only the best in the category. We’ve identified and meticulously tested a range of top-leading best netgear docsis 3 0 cable modem cm400 products, comparing them side-by-side in both practical real-world applications and carefully controlled test environments. This rigorous examination ensures we understand the strengths and limitations of each option.
Our extensive review dives deep into the essential aspects of each best netgear docsis 3 0 cable modem cm400 product. We scrutinize their key features, gauge overall performance, and assess their value proposition to provide you with a clear, unbiased perspective. Our selection process is rigorous, focusing on critical factors like Quality, Ease of Use, and Pricing. We understand that every user has unique requirements and budget constraints, and our review is tailored to help you identify the best netgear docsis 3 0 cable modem cm400 that not only meets but exceeds your expectations.
Editor’s Note: As of March 2026, we have updated this review to reflect the most current information available. We’ve also included a variety of additional options, ensuring that our recommendations remain relevant and comprehensive, helping you make a well-informed decision in a constantly evolving market.
Top Products for best netgear docsis 3 0 cable modem cm400
1. NETGEAR Cable Modem CM400 Compatible with Cable Providers Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS3.0, Black (CM400-100NAS)
Key Features:
- ELIMINATE MONTHLY CABLE MODEM RENTAL FEES – Up to $156 per year
- DOCSIS 3. 0 Cable Modem with 1 Gigabit Ethernet port. One (1) Gigabit Ethernet port with auto-sensing technology
- Up to 340Mbps download and upload speed. Separate router required for WiFi. 8×4 channel bonding.
- DOCSIS 3. 0 unleashes 8x faster download speeds than DOCSIS 2. 0
- Ideal for streaming HD videos, faster downloads, and high-speed online gaming
- Required for the fastest cable Internet speed tiers
- Compatible with Xfinity from Comcast, Spectrum, Cox, & more. Not compatible with bundled voice services.
- Memory storage capacity: 64.0 MB
2. NETGEAR Cable Modem CM400 – Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS 3.0, Black, 8×4 Cable Modem (CM400)
Key Features:
- 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 CM400 replaces your cable modem saving you up to $168/yr in equipment rental fees.
- BUILT FOR SPEED: Best for cable provider plans up to 100 Mbps speed.
- WORKS WITH ANY WiFi ROUTER: Connect any WiFi 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 WiFi router.
- MODEM TECHNOLOGY: Engineered with 8×4 channel bonding and DOCSIS 3.0.
3. NETGEAR Cable Modem CM400 – Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS 3.0 (Renewed)
Key Features:
- 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 CM400 replaces your cable modem saving you up to $168/yr in equipment rental fees.
- BUILT FOR SPEED: Best for cable provider plans up to 100 Mbps speed.
- WORKS WITH ANY WiFi ROUTER: Connect any WiFi 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 WiFi router.
- MODEM TECHNOLOGY: Engineered with 8×4 channel bonding and DOCSIS 3.0.
4. NETGEAR Cable Modem CM500 – Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400Mbps | DOCSIS 3.0
Key Features:
- Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
- Speeds by carrier: Spectrum (up to 400Mbps), Xfinity (up to 200Mbps), Cox (up to 150Mbps).
- Works with any wifi router: Connect any WiFi 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 WiFi router.
- Modem technology: Engineered with 16×4 channel bonding and DOCSIS 3.0.
5. 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)
Key Features:
- 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.
- Gigabit Ethernet port—Fastest wired speeds to connect your router or computer
6. NETGEAR Cable Modem DOCSIS 3.0 (CM700-1AZNAS) Compatible with All Major Cable Providers Including Xfinity, Spectrum, Cox, For Cable Plans Up to 800 Mbps
Key Features:
- 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 CM700-1AZNAS replaces your cable modem saving you up to 168 Dollars/year in equipment rental fees.
- Speeds by carrier: Xfinity (up to 800Mbps), Cox (up to 500Mbps), Spectrum (up to 400Mbps).
- 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.
- Modem technology: Engineered with 32×8 channel bonding, OFDM 2×2, and DOCSIS 3.1.
- System Requirements : Cable broadband Internet service, 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
7. NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major Cable Providers Including Xfinity, Spectrum, Cox, For Cable Plans Up to 1 Gbps,Black
Key Features:
- Compatible with all major cable internet providers with internet speed up to 1Gbps. Currently certified with Spectrum and Cox (up to 1Gbps), Xfinity (up to 800Mbps). Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
- Model CM1000 replaces your cable modem saving you up to 168/year in equipment rental fees
- Connect any WiFi router to this modem’s Ethernet port to support all your wireless devices
- 1 Gigabit Ethernet port connects to your computer or separate WiFi router
8. Netgear Gigabit Cable Modem (32×8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)
Key Features:
- 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
9. NETGEAR Cable Modem CM700 – Compatible with all Cable Providers incl. Xfinity, Spectrum, Cox | For Cable Plans up to 800Mbps | DOCSIS 3.0| Black
Key Features:
- 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 CM700 replaces your cable modem saving you up to 168 Dollars/year in equipment rental fees.
- Speeds by carrier: Xfinity (up to 800Mbps), Cox (up to 500Mbps), Spectrum (up to 400Mbps).
- 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.
- Modem technology: Engineered with 32×8 channel bonding, OFDM 2×2, and DOCSIS 3.1.
10. NETGEAR Nighthawk AC1900 (24×8) DOCSIS 3.0 WiFi Cable Modem Router Combo (C7000) for Xfinity from Comcast, Spectrum, Cox, more (Renewed)
Key Features:
- input voltage：120 -240V
- 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
- 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, UNIX, or Linux, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
- BUILT FOR FAST SPEED: Best for cable provider plans up to 400 Mbps speed
- 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
- MODEM TECHNOLOGY: Engineered with 24×8 channel bonding and DOCSIS 3.0
- SAFE & SECURE: Includes parental controls, and supports WEP and WPA/WPA2 wireless security protocols
Guiding You to the Best best netgear docsis 3 0 cable modem cm400 Choice
Clarify Personal Requirements
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Emphasis on Product Quality
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Checking Seller’s Track Record
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Real User Experiences
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Product Lifespan and Upkeep
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Rigorous Product Comparison
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Market Awareness
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