Best Modem for Spectrum 400 Mbps

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It can be tough to find the best modem for spectrum 400 mbps for your needs, as there are so many different brands like Motorola, ARRIS, NETGEAR, and models to choose from. We have done a lot of research and found the Best modem for spectrum 400 mbps on the market right now.

Based on our extensive evaluations and testing, we have concluded this list of the best modem for spectrum 400 mbps with price ranging between $3 and $175. We chose Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | as our top pick. Check out our the best for all of our favorites, and be sure to read our buying guide to get all the information you need to make the best choice!

Our system has analyzed 22525 reviews.

Best Modem for Spectrum 400 Mbps

Here are the top modem for spectrum 400 mbps we found:

1. Motorola MB7621 Cable Modem | Pairs with Any WiFi Router |

Motorola MB7621 Cable Modem | Pairs with Any WiFi Router |
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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.

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.

Brand: Motorola         Group: Personal Computer         Reviews: 1991         Rating: 4.77

2. Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by

Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by
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Fast 24×8 DOCSIS 3.0 cable Modem Plus a built-in AC1900 Dual band (2.4GHz and 5GHz) Wi-Fi Gigabit Router with four Gigabit (GigE) Ethernet ports, power boost Wi-Fi amplifiers, firewall security, and more.

The maximum modem speed is 1000 Mbps, supporting service speeds up to 650.

Eliminate up to 156 dollars per year in cable Modem rental fees. (Savings are shown for Comcast Xfinity and vary by cable service provider.) certified by all leading cable service providers including Comcast Xfinity, Cox, Charter spectrum (no cable Modem is compatible with fiber optic, DSL, or satellite services, available from Verizon, AT&T, CenturyLink, Frontier, and others.)

Built-in high-speed router with AC1900 wireless and Power boost – Provides internet access for Wi-Fi devices including smartphones, notebooks, tablets, and more.

4 10/100/1000 Gigabit Ethernet LAN ports provide wired connections to Windows and Mac computers and other Ethernet-capable devices. A Broadcom cable Modem Chipset provides security from denial of service attacks.

Wireless power boost for better speed and range – 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 Performing at both 2.4 GHz and 5 GHz frequencies focuses the signal on wireless clients to further enhance performance and range

Brand: Motorola         Group: Personal Computer         Reviews: 1991         Rating: 4.77

3. ARRIS SURFboard SB6183-RB DOCSIS 3.0 16×4 Cable Modem| Approved on Xfinity, Cox, Spectrum and

ARRIS SURFboard SB6183-RB DOCSIS 3.0 16x4 Cable Modem| Approved on Xfinity, Cox, Spectrum and
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APPROVED with Comcast Xfinity, Spectrum (Charter, Time Warner, Brighthouse), Cox and more. If not sure call your cable provider to find out if approved to use.

REQUIRES Cable Internet Service. Not compatible with: Verizon, AT&T, or CenturyLink

Cable Modem only (no WiFi router). NO support for Cable TELCO options

Internet speeds up to 686 Mbps on 16 Download Channels and 131 Mbps on 4 Upload Channels, based on your cable ISP subscription. Approved for plans up to 400Mbps.

Gigabit Ethernet port to connect to computer or router

Great for streaming HD Video and gaming on multiple devices at a time

90 Day Warranty. ARRIS Certified Refurbished. US Technical support. ARRIS Certified Refurbished products will ALWAYS be branded ARRIS, Never Motorola! If you get Motorola branded product they are illegitimate, need to be returned to Seller and Reported to Amazon

Brand: ARRIS         Group: Personal Computer         Reviews: 386         Rating: 4.68

4. NETGEAR Cable Modem DOCSIS 3.0 (CM700-1AZNAS) Compatible with All Major Cable Providers Including

NETGEAR Cable Modem DOCSIS 3.0 (CM700-1AZNAS) Compatible with All Major Cable Providers Including
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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.

Brand: NETGEAR         Group: Personal Computer         Reviews: 386         Rating: 4.68

5. ARRIS SURFboard SBG7400AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Approved for

ARRIS SURFboard SBG7400AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Approved for
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3 products in 1: DOCSIS Cable Modem, AC2350 dual-band Wi-Fi, 4 port Gigabit Router (cable digital voice service not supported)

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

24 downstream & 8 upstream channels. Best for cable internet speed plans up to 600 Mbps. Cable internet service required

Wi-Fi 5 AC2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet portsSetup and manage your network with the SURFboard Manager app

Brand: ARRIS         Group: Personal Computer         Reviews: 386         Rating: 4.68

6. NETGEAR Cable Modem with Built-in WiFi Router (C6230) – Compatible with All Major Cable Providers

NETGEAR Cable Modem with Built-in WiFi Router (C6230) - Compatible with All Major Cable Providers
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SPEEDS BY CARRIER: Xfinity (up to 300Mbps), Spectrum (up to 400Mbps), Cox (up to 250Mbps).

COMPATIBLE WITH MAJOR CABLE INTERNET PROVIDERS: Including Xfinity, Spectrum, Cox, and more. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service

FAST WIFI PERFORMANCE: Simultaneous dual-band WiFi provides coverage for medium sized homes with AC1200 speed (up to 1200Mbps)SAVE MONTHLY RENTAL FEES: Replaces your cable modem and WiFi router saving you up to $168/yr in equipment rental feesVERSATILE CONNECTIONS: 2 Gigabit Ethernet ports and 1 USB port give fast wired connections to your computer, printer, game box, storage drive, and other devices

Brand: NETGEAR         Group: Personal Computer         Reviews: 386         Rating: 4.68

7. NETGEAR Cable Modem CM600 – Compatible with Cable Providers Including Xfinity by

NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by
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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

Ideal for streaming 4K UHD content, fastest downloads, and high-speed online gaming

Brand: NETGEAR         Group: Personal Computer         Reviews: 216         Rating: 4.67

8. NETGEAR Cable Modem CM600 – Compatible with All Cable Providers Including Xfinity by Comcast,

NETGEAR Cable Modem CM600 - Compatible with All Cable Providers Including Xfinity by Comcast,
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This is a Certified Refurbished product on Amazon Renewed Certified Refurbished products are tested and certified to look and work like new, with limited to no wear, by a third-party refurbisher.

The refurbishing process includes functionality testing, cosmetic inspection, and repackaging. The product is backed by a minimum 90-day warranty, and may arrive in a generic brown or white box. The product ships with a charger and cable, but does not include headphone, manual or SIM card.

Accessories m

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 CM600 replaces your cable modem saving you up to $150/yr in equipment rental fees.

BUILT FOR FAST SPEED: Best for cable provider plans up to 400 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 Wi-Fi router. MODEMHNOLOGY: Engineered with 24×8 channel bonding and DOCSIS 3.0.

Brand: NETGEAR         Group: Personal Computer         Reviews: 78         Rating: 4.84

9. NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8×4

NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8x4
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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.

Netgear recommends to udpate the firmware for the device to be up to date.

DOCSIS 3.0 cable modem unleashes 8x faster download speeds up to 340 Mbps faster, smoother WiFi, and works with all major cable Internet providers (Not Compatible with Cable Bundled Voice Services).

Certified to work with Cable Internet Providers like XFINITY from Comcast, Time Warner Cable, Cox, Cablevision, Bright House Networks, & More (Not Compatible with Cable Bundled Voice Services).

8×4 channel bonding with Gigabit Ethernet Ports for fast wired, connections USB port to wirelessly share your hard drive.Double firewall protection (SPI and NAT firewall)

“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.”

Brand: NETGEAR         Group: Personal Computer         Reviews: 35         Rating: 4.61

10. WI – FI: HOW TO BOOST YOUR WI – FI SIGNAL: Get

WI - FI: HOW TO BOOST YOUR WI - FI SIGNAL: Get
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Brand:          Group: Digital Ebook Purchas         Reviews: 0         Rating: 0

What to Look for to Have The Best Modem for Spectrum 400 Mbps ?

Premium

If you’re looking for the premium modem for spectrum 400 mbps , the ARRIS SURFboard SBG7400AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Approved for is a great option to consider. It has a high review count and average rating stars, which indicates that it is a quality product.

Most Discounted

If you’re looking for the least expensive modem for spectrum 400 mbps , the NETGEAR Cable Modem CM600 – Compatible with Cable Providers Including Xfinity by might be a good option to consider. It has a lower review count and average rating stars, but it is still a quality product.

Most Reviews

If you’re looking for the most reviews modem for spectrum 400 mbps , the Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | is a great option to consider. It has a high review count and average rating stars, which indicates that it is a quality product.

Lowest Price

If you’re looking for the lowest price modem for spectrum 400 mbps , the WI – FI: HOW TO BOOST YOUR WI – FI SIGNAL: Get might be a good option to consider. The quality is just good that you can continue to use this product.

High Quality

If you’re looking for the high quality modem for spectrum 400 mbps , the Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by might be a good option to consider. This box is made from high-quality materials and has a lot of reviews and ratings, indicating that it is a quality product.

Best Seller

If you’re looking for the best seller modem for spectrum 400 mbps , the NETGEAR Cable Modem CM600 – Compatible with All Cable Providers Including Xfinity by Comcast, might be a good option to consider. The quality is excellent and it’s a great product to buy.

Most Affordable

If you’re looking for the most affordable modem for spectrum 400 mbps , the NETGEAR Cable Modem with Built-in WiFi Router (C6230) – Compatible with All Major Cable Providers might be a good option to consider. The quality is good, and it’s a great product to buy.

Conclusion

While we were recharching for the best best modem for spectrum 400 mbps , we found many of them performs good while some not. One product has something advantage than other. So, it was a bit difficult to find the best of them.

We analyzed 22525 reviews of the customers and used a data management system to narrow down the list of the product into 10. Also here are something good beyond these 10 product but we hope these 10 product from Motorola, ARRIS, NETGEAR, will fulfil your needs.

I am Chris, an Electronics Engineer who is enthusiastic about electronics, wireless networks, and cryptocurrency. I also have a background in software development and electrical engineering. I write on this blog to share my fondness for crypto-powered communications networks. Explore all of my contributions

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