13 Best Spectrum Compatible Modems in 2020

Are you a Charter Spectrum subscriber who wants to get off the monthly equipment rental? It doesn’t matter whether you are on their fastest service plan or on slow speed plans, as our list includes the best-rated modems that are highly compatible.

The equipment rental might seem like a small amount BUT it is not!

Cable internet providers in the US charge anywhere between $15-25/month in the name of equipment rental. The modem rental you pay for 12 months can actually land a decent modem and use it without trouble for at least 4-5 years (unless you upgrade to a different plan/ISP.)

It’s not just Spectrum that charges you a hefty amount for renting a modem and router, but almost all the cable providers in the United States charge you a similar amount for renting equipment. And since, it can be avoided by purchasing a reliable modem, why not do it?

The equipment rental contributes to 15-20% of the revenue which is significant, that’s why your cable provider wouldn’t want you to purchase a modem/router. But since they can’t stop you directly, they do it by asking users to use the modems that are certified by them (although they have published their list on their websites.)

Contents

Best Spectrum Compatible Modems

These certified lists are quite long and are a bit confusing to most of the users. In my research, I found out that many people found modems on those lists, they were compatible with Spectrum as well. However, they didn’t provide adequate speeds according to the plan (although many modems are bad, but this can happen if you end up picking a modem that’s not suitable for your service package.)

1. NETGEAR Cable Modem CM500 – Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox.

  • NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
  • Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
  • Save monthly rental fees: Model CM500 replaces your cable modem saving you up to $168/yr in equipment rental fees.
  • Works with any wifi router: Connect any WiFi router to this modem’s Ethernet port to support all your wireless devices.
  • Compatible with all major cable internet providers: Including certification by Xfinity by Comcast, COX, and Spectrum
  • Built for fast speed: best for cable provider plans up to 300 mbps speed.
  • Modem technology: Engineered with 16×4 channel bonding and DOCSIS 3.0.

2. NETGEAR C6250

  • BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.
  • SAFE & SECURE: Includes parental controls, and supports WEP and WPA/WPA2 wireless security protocols.
  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum
  • SAVE MONTHLY RENTAL FEES: Model C6250 replaces your cable modem and WiFi router saving you up to $168/yr in equipment rental fees.
  • FAST WiFi PERFORMANCE: Get up to 1500 sq ft wireless coverage and 25 devices connected with AC1600 speed (up to 1600 Mbps).
  • MODEM TECHNOLOGY: Engineered with 16×4 channel bonding and DOCSIS 3.0.
  • VERSATILE CONNECTIONS: 2 Gigabit Ethernet ports and 1 USB port give you fast wired connections to your computer, printer, game box, storage drive, and other devices.
  • NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.

3. NETGEAR Cable Modem CM600 – Best For 400 Mbps

  • Separate router required for WiFi
  • Ideal for streaming 4K UHD content, fastest downloads, and high-speed online gaming
  • Cable Modem only (no WiFi router).Memory: 8 MB NOR flash and 128 MB RAM
  • DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port
  • Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more
  • DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
  • Support Cable Internet Service plans up to 300Mbps
  • Not compatible with: Verizon, AT&T, or CenturyLink
  • 24×8 channel bonding
  • Requires Cable Internet Service
  • Recommended for all speed tiers up to 500 Mbps

4. 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) -Modem Router Combos

  • 8×4 channel bonding.
  • Memory storage capacity: 64.0 MB
  • DOCSIS 3
  • Not compatible with bundled voice services.
  • DOCSIS 3
  • 0 Cable Modem with 1 Gigabit Ethernet port
  • 0 unleashes 8x faster download speeds than DOCSIS 2
  • Separate router required for WiFi
  • Up to 340Mbps download and upload speed
  • Compatible with Xfinity from Comcast, Spectrum, Cox, & more
  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES – Up to $156 per year
  • One (1) Gigabit Ethernet port with auto-sensing technology
  • Ideal for streaming HD videos, faster downloads, and high-speed online gaming
  • Required for the fastest cable Internet speed tiers

5. Motorola MB7621, For Gigabit Speeds (24×8) – Standalone Cable Modem

  • Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office
  • Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps
  • Setup is fast and easy using the Quick Start guide
  • ELIMINATE CABLE MODEM RENTAL FEES UP TO 156 DOLLARS PER YEAR.(Savings are shown for Xfinity and vary by cable service provider
  • 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
  • Wirecutter rates this “the best modem for most people.” A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
  • The Motorola MG7315, MG7540, MG7550, and MG7700 have a built-in wireless router.)
  • This cable modem’s one Gigabit Ethernet port connects to a WiFi router, computer, HDTV, game station, or streaming video device
  • Model MB7621 has no phone jack.)
  • Support is in English or Spanish.
  • Experienced USA-based Motorola customer support specialists are happy to help if you need them
  • Great for use with Whole Home WiFi or Mesh networks like eero, Google WiFi, and Orbi
  • No cable modem is compatible with fiber optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and others
  • (This cable modem does not have a built-in wireless router or telephone call capability
  • Includes phone and web support by friendly, professional USA-based technical support specialists.
  • A two-year warranty plus rugged lightning and power surge circuits protect your investment

6. Netgear C6300-100NAS AC1750 (16×4) – Best Value For Money

  • Three-in-one DOCSIS 3.0 Cable Modem + AC1750 WiFi Router+ 4 Gigabit Wired Switch
  • Ideal for streaming HD videos, faster downloads, and high-speed online gaming
  • Up to 680Mbps modem speed and Dual-Band AC1750 (2.4GHz & 5GHz) WiFi speed
  • Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
  • 16×4 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)
  • System requirements : Microsoft Windows 10, Vista, XP, 2000, Mac OS, UNIX, or Linux
  • DOCSIS 3.0 unleashes 16x faster download speeds than DOCSIS 2.0

7. TP-Link 16×4 AC1750 Wi-Fi Cable Modem Router & Gateway

  • Increased Wi-Fi range: six internal antennas and high-powered amplifiers Boost signal strength and reduce interference
  • Faster speed: up to 1750Mbps Wi-Fi speeds with simultaneous 2
  • Eliminate rental fee: eliminate your cable Modem monthly rental fee – up to $120 per year
  • Cable Modem router: item is cable Modem router and this will serve as both your cable Modem and Wi-Fi router
  • 4GHz (up to 450Mbps) and 5GHz (up to 1300Mbps) bands; Channel bonding of up to 16 downstream and 4 upstream channels, up to 680Mbps download speeds
  • Power Ranked TP-LINK “highest in customer satisfaction for wireless routers in 2017″;great for cable internet plans up to 300Mbps with Infinity from Comcast, spectrum (including Charter, time Warner Cable, and bright house networks), Cox, Sudden link, Mediacom, and wow
  • Industry leading support: 2-year warranty and free 24/7 technical support; J

8. ARRIS SURFboard SBG6950AC-2 (16×4) DOCSIS 3.0 Modem + AC1900 Dual Band Wi-Fi Router

  • 0 GHz Dual-band Concurrent Wi-Fi Router with 4 Gigabit Ethernet ports
  • Manufacturer REFURBISHED
  • Not compatible with ATT, Verizon or CenturyLink
  • Wi-Fi beamforming for max coverage and performance.
  • APPROVED for plans up to 300 Mbps
  • Cable Modem: 16 DOWNLOAD & 4 UPLOAD channels to maximize your Cable ISP service offerings
  • 1 year
  • Compatible with Spectrum (Time Warner, Charter and Brighthouse)
  • Supports IPv4 and IPv6 ? the latest Internet standard.
  • APPROVED with major U
  • Cable Providers Xfinity and Cox
  • 3 products in 1: 16×4 Cable Modem, AC1900 Dual band Wi-Fi Router, 4 Port Gigabit Router
  • Router: AC1900 2
  • REQUIRES Cable Internet Service
  • Connectivity technology: Wi-Fi Built In
  • Operating System Compatibility-Linux, Mac, Unix, Windows

9. Motorola MG7700 24×8 Cable Modem + AC1900 Dual Band WiFi Gigabit Router with Power Boost – Best For Gigabit Speeds

  • Rugged Lightning and Power Surge circuits further protect your investment.
  • 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
  • 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.
  • 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
  • Built-in high-speed router with AC1900 wireless and Power boost – Provides internet access for Wi-Fi devices including smartphones, notebooks, tablets, and more
  • Four 10/100/1000 Gigabit Ethernet LAN ports provide wired connections to Windows and Mac computers and other Ethernet-capable devices
  • A two-year warranty is the longest in the the industry
  • Eliminate up to $156 per year in cable Modem rental fees
  • The vertical design looks great in any home or office
  • Minimize shelf space and improve cooling – integrating the cable Modem and router creates a reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk space
  • A Broadcom cable Modem Chipset provides security from denial of service attacks.
  • (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.)

10. TP-Link TC-W7960

  • Game, stream, and download at Wi-Fi speeds up to 300Mbps
  • Eliminate Your Cable Modem Monthly Rental Fee
  • Channel bonding of up to 8 downstream and 4 upstream channels
  • Certified for XFINITY from Comcast, Spectrum (Including Charter, Time Warner Cable, and Bright House Networks), Cox, Suddenlink, Mediacom, and WOW
  • Up to 343Mbps download and 143Mbps upload speeds (based on cable provider’s service)
  • Item is Cable Modem Router and great with Cable Internet plans up to 150Mbps
  • Industry-leading 2-year warranty and unlimited 24/7 technical support

11. Arris SURFboard (16×4) Docsis 3.0 Cable Modem Plus AC1900 Dual Band Wi-Fi Router, Certified for Xfinity, Spectrum, Cox & More (SBG6950AC2),Black -Modems

  • Wi-Fi 5 AC1900 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports
  • Cable Internet Providers including Cox, Spectrum, Xfinity & others
  • 3 products in 1: DOCSIS 3.0 Cable Modem, AC1900 dual-band Wi-Fi Router, 4 Port Gigabit Ethernet Router (cable digital voice service not supported)
  • Compatible with major U.S
  • 16 downstream & 4 upstream DOCSIS 3.0 bonded channels
  • Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • Setup and manage your network with the SURFboard Manager app
  • Cable internet service required
  • Best for cable internet speed plans up to 400 Mbps.

12. NETGEAR N600 (8×4) WiFi DOCSIS 3.0 Cable Modem Router (C3700) Certified for Xfinity from Comcast, Spectrum, Cox, Spectrum & more -Modems

  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES Up to $120 per year
  • DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
  • 8×4 channel bonding, Denial of Service (DoS) attack prevention
  • Ideal for streaming HD videos, faster downloads, and high speed online gaming
  • Compatibe with Xfinity from Comcast, Spectrum, Cox, & more
  • 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
  • Not compatible with bundled voice services..Wifi technology:802.11n Dual Band Gigabit
  • 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
  • Up to 340Mbps modem speed and Dual Band N450 (2.4GHz & 5GHz) WiFi speed

13. NETGEAR C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8×4 Download speeds for Xfinity from Comcast, Spectrum, Cox, Cablevision (Renewed) -Modems

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

The Buyer’s Guide

The Buyer’s Guide

Purchasing a modem could be a daunting task for most of us. As it not just involves checking the technical specifications, design, but it also involves checking compatibility with the cable internet provider & the subscribed service package. In this buyer’s guide, I’ll add a few things to consider when purchasing a modem.

1. Compatibility with Spectrum

Compatibility with Spectrum compatible modems

Compatibility with Spectrum is one of the most important things to consider when getting a modem. If you end up buying an incompatible modem, then it won’t work or have trouble connecting/activating. That’s why it’s very important to make sure that the modem you’ve chosen is compatible with their service.

2. Compatibility with Service Package

Compatibility with Service Package

A lot of people end up purchasing cable modems that are not suitable for their service package. If you’re subscribed to a 1000 Mbps plan, make sure that your modem is at least capable of providing speeds upto 1500 Mbps (20% more than the offering is a rule I generally follow.)

In many cases, people subscribed to a service package of 1000 Mbps end up choosing a modem that provides exact 1000 Mbps speed or even less, in both cases the experience shall be bad. That’s why make sure that you are picking a modem that isn’t just approved with Spectrum compatible modems, but is also suitable for your service plan.

3. DOCSIS Technology (DOCSIS 3.0 vs 3.1)

DOCSIS Technology (DOCSIS 3.0 vs 3.1)

Do you have a gigabit connection at your home? In that case you should be grateful to the revolutionary DOCSIS technology. It is due to this tech, that the coaxial cables that are used for cable TV are capable of providing gigabit speeds (which was previously only possible via fiber optic cable.)

Although most of the cable internet providers in the United States are currently using DOCSIS 3.0, a few of them have upgraded to DOCSIS 3.1. So when picking a modem, make sure that you get a DOCSIS 3.1 modem if your network provider uses that technology for their networking infrastructure.

4. Channel Bonding

Channel Bonding

Have you ever gone through a modem listing and found out numbers like 32×8, 24×8, 16×8, 8×4, 4×4? These numbers represent the downstream and upstream channels. So for a modem that comes with 32 x 8 channel bonding, it’ll have 32 channels for downstream and 8 channels for upstream.

Basically, when picking a modem, you should make sure that the channels on your cable modem are actually equal or above the below speed requirements.

  • 32×8 (DOCSIS 3.1) = High Gigabit Speeds (Between 1-10 Gbps)
  • 32×8 = Gigabit speeds (Between 1-2 Gbps)
  • 24×8 = High speed plans (Between 800 Mbps to 1 Gbps)
  • 16×8 = Medium speed plans (Between 500 Mbps to 700 Mbps)
  • 8×4 = Slow speed connections (Between 100-400 Mbps)
  • 4×4 = Suitable for very slow speeds (Between 5-50 Mbps)

5. Standalone Modem vs Modem/router combo

Standalone Modem vs Modem/router combo

If you are looking for the best performance or are on the highest service package of Spectrum then you should consider getting a standalone modem. Since it’s a standalone modem, you’ll also have to get a wireless router separately.

In case you’re low on budget or don’t need very high-performance and your goal is to save rent, then a modem/router combo would make sense. Since it has both the units built in, there’s a chance that the performance won’t be as good as the standalone equipment, but it should get your job done.

6. Bad Modems

Bad Modems

Yes, if you’ve gone through the official Spectrum compatible modems list, you must have noticed that it involves a lot of modems that come with the Intel Puma 6 and 7 chipset which are known for latency issues, security vulnerabilities, etc.

One way to avoid getting a bad modem is by picking the right modem from our website (because by default we avoid using such modems in our list.) However, you can also check out the list of bad quality modems (if you need a list of all the bad quality modems.)

7. Price

Price

Budget is one of the most important factors to consider when getting a modem. Like mentioned above, purchasing a modem actually helps you save the monthly equipment rental. You should decide a budget that you are willing to allocate for your networking setup and choose products accordingly.

I think most of the good quality modems cost anywhere between $150-250. In some cases they’re standalone devices, in many cases they’re a combination of modem and router.

The FAQs

1. Which is the best modem for Spectrum?

According to my research, is the best option in terms of both compatibility and high speed plans.

2. Should I continue renting or consider buying?

Well, purchasing a modem offers a better return on investment. The avg monthly equipment rental for most of the providers in the US is $15, 1 year usage shall cost $180 which is almost equivalent to the cost of a better modem and not to forget the ownership benefits.

3. Why should I purchase an approved or compatible modem?

It’s quite important to purchase an approved modem, because if it isn’t compatible with Spectrum, they won’t allow you to connect it. In case you still end up connecting, you’ll end up facing a lot of connectivity issues?

4. Is there any list of modems that I should avoid?

Yes, there are a few modems that come with the Intel Puma 6 and 7 chipset, they’re known to have security vulnerabilities, laggy speeds, and packet loss. You should avoid those bad modems.

5. Do I need DOCSIS 3.1 or would a DOCSIS 3.0 modem work?

This depends on the area and your cable provider. For instance, Comcast Xfinity has DOCSIS 3.1 in most of the locations in the US, however, the 3.1 technology isn’t implemented in all the locations. Also, if Spectrum supports the technology in your location, you should consider getting a 3.1 modem.

The Verdict

It doesn’t matter what your cable internet needs are. It also doesn’t matter which internet speed you’re subscribed to, if you’re in search of a highly compatible modem for your network, then this post should be really helpful.

In my opinion, you should consider getting a DOCSIS 3.1 modem with 32×8 channel bonding for gigabit connections and a future-proof setup.

In case you’re looking for a decent modem that can handle gigabit speeds (non DOCSIS 3.1) then you should consider getting a modem that has channel bonding above 24×8.

For medium intensive connection speeds, you should consider getting a modem that is compatible with Spectrum + has channel bonding above 16×8.

I hope that you’ve found the best cable modem for Spectrum. In case you have any trouble, feel free to contact me or comment below. I’m here to help.

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