The 4 Best Cable Modems of 2026

Your modem is the gateway to your digital life. Whether you are streaming movies in 4K, dominating in online gaming, or managing a home office, the right equipment makes all the difference. While your Internet Service Provider (ISP) likely offers a rental unit, investing in your own cable modem can lower your monthly bill and unlock better performance. 

Below, we have compiled the top modem picks for 2026 and a complete guide on when and how to upgrade your equipment for faster, more reliable internet. 

Key Takeaways: Best Cable Modems of 2026

• Look for DOCSIS 3.1: All top picks, including the Motorola MB8611 and ARRIS SB8200, use this standard, which is up to 10x faster than DOCSIS 3.0 and essential for modern speeds. 
• Match Hardware to Speed: Ensure your modem matches your ISP plan to avoid bottlenecks. The Netgear CM2000 is the best choice for internet service up to 2.5 Gbps. 
• Eliminate Rental Fees: Buying your own cable modem can save up to average of $180 per year in ISP rental charges. 
• Choose Your Configuration:
• Separate Units: Best for performance and flexibility (e.g., Motorola MB8611). 
• All-in-One: Best for simplicity and saving space (e.g., ARRIS SURFboard G36 with built-in Wi-Fi 6). 

Quick Buyer's Decision Guide

Not sure where to start? Here is our cheat sheet for choosing the right modem: 

• For plans up to 1 Gbps: ARRIS SURFboard SB8200  
• For plans up to 1 Gbps: Motorola MB8611 
• For simple setup (all-in-one): ARRIS SURFboard G36 
• You Need Phone/Voice Service: NETGEAR CM2050V 

What Is a Cable Modem?

A cable modem acts as a digital translator for cable internet. It takes the signal from your ISP's coaxial cable and converts it into a digital format your devices can understand. If you care about speed, security, and compatibility—in addition to your budget—finding the right product is essential. 

 As you review our picks, remember to compare benefits like reliability and setup ease against your internet and networking needs, not just raw speed specifications. 

What Is the Difference Between a Modem and a Router?

Your cable modem connects your device to the internet, while the router creates the local network that distributes Wi-Fi among your devices. There are also gateways, that are an integrated modem and router. But due to increased processing overhead, they can reduce the performance of your internet connection, usually by increasing latency. 

The most common standard for cable modems is DOCSIS 3.1. This feature is present in all our top choices because it is significantly faster than the older DOCSIS 3.0 standard. However, it maintains backward compatibility, meaning new modems can still work with older ISP networks while future-proofing your home. 

What Are Signs to Update My Modem?

If you aren't sure if you need a new device, look for these red flags. An outdated modem is a common reason why your internet speed fluctuates. 

• Plan Speed Mismatch: You’ve upgraded to a high-speed internet plan (over 1Gbps), but your modem is an older DOCSIS 3.0 model that can bottleneck speeds between 500-1000 Mbps. 
• Frequent Connection Resets: You have to "power cycle" (unplug and replug) the modem multiple times a week to restore a lost internet connection. (See our guide on how to reset your router properly). 
• Reduced Performance: Your internet speeds are significantly slower than what you pay for, even when using a direct wired connection. 
• ISP Service Compatibility: You receive notices from your ISP (like Xfinity, Spectrum, or Cox) stating that your current device is "unsupported" or "end-of-life," meaning they will no longer push security patches to it. 
• Physical Aging: The modem is more than 5 years old. Internal components degrade over time due to constant heat, leading to intermittent signal "jitter" and packet loss.

Comparison Table: Best Cable Modems of 2026

ModemBest ForTop FeaturesPrice RangeProsConsMotorola MB8611Internet speeds over 1 GbpsDOCSIS 3.1, multi-gig speeds, sleek design$$Fast, reliable, easy setupNo Wi-Fi, priceyARRIS SURFboard SB8200Internet speeds up to 1 GbpsDOCSIS 3.1, dual Gigabit ports, ISP-friendly$Durable, proven, ISP compatibleNo router, mid-range costNetgear CM2050VXfinity Voice & speeds over 1 GbpsDOCSIS 3.1, 2.5 Gbps, premium build$$Blazing fast, great for gaming/streamingExpensive, overkill for mostARRIS SURFboard G36Simple setup / fewer devicesDOCSIS 3.1, Wi-Fi 6 router combo$$Built-in Wi-Fi 6, single-device setupHigh upfront cost, less flexible The best modem depends on your specific needs. Are you a competitive gamer, or do you just need reliable video calls for work? Here is how different devices stand up to different demands.

Which Cable Modem Is the Most Futureproof?

Motorola MB8611

Best For: Internet speeds over 1 Gbps 

Fast and resilient, the Motorola MB8611 supports multi-device households with multi-gig capabilities (up to 2.5 Gbps). If you are tired of lag during Zoom meetings or while streaming, the Active Queue Management (AQM) feature helps manage data traffic efficiently. 

This modem allows you to add or replace devices down the line without worrying about bottlenecks. It supports Xfinity internet setups and works with most major cable providers. 

Pros: 

• Top choice for scalability and simple setup. 
• Supports multi-device households with reduced throttling. 
• DOCSIS 3.1 plus 32x8 channel bonding for high speed. 
• Supports 2.5 Gbps Ethernet port for high-speed plans. 
• Compact vertical design promotes cooling. 

Cons: 

• No built-in Wi-Fi (requires separate router). 
• Slightly higher price point.

Which Cable Modem Is the Most Reliable?

ARRIS SURFboard SB8200

The ARRIS SURFboard SB8200 provides top-tier performance at a reasonable cost. It is an excellent option for nearly any home network, supporting plans up to 1 Gbps. It is perfect for 4K streaming and high-internet usage without a premium price tag. 

Pros: 

• Proven model for fast, reliable internet. 
• Simple setup and management via the SURFboard Central app. 
• Compatible with major providers including Cox, Spectrum, and Xfinity. 
• Two 1-Gigabit Ethernet ports allow for link aggregation (combining two speeds). 
• Compact design with simplified lighting. 

Cons: 

• No router functionality.

Which Cable Modem Is the Best for Power Users?

Netgear CM2050V

Best For: Xfinity Voice & speeds over 1 Gbps 

The Netgear CM2050V is the cheetah of the group. Delivering 2.5 Gbps speeds, it works with all major cable internet providers. This is the ideal pick for gamers who need to optimize their internet setup. With a powerful 1.5GHz dual-core processor, it reduces latency and ensures faster data transfer. 

Pros: 

• Ideal for heavy users and gamers. 
• Proven reduced throttling and low latency. 
• Up to 2.5 Gbps speeds for ultra-fast plans. 
• Vertical design helps dissipate heat effectively. 
• Works with Xfinity Voice plans. 

Cons: 

• High price tag. 
• Overkill for average internet users (e.g., just browsing or SD streaming). 

Which Is the Best All-in-One Cable Modem?

ARRIS SURFboard G36

The ARRIS SURFboard G36 is a workhorse, offering up to 6.5 Gigabit combined wired speeds. It’s a solid all-around choice thanks to its built-in AX3000 Wi-Fi 6 router and 32x8 channel bonding. If you’re looking to outfit your whole home and avoid buying multiple pieces of equipment, this modem delivers. 

Pros: 

• Simple setup; supports major cable service providers. 
• Built-in AX3000 Wi-Fi 6 router eliminates the need for extra hardware. 
• Provides stable internet speeds across all devices. 
• 2-year limited warranty. 

Cons: 

• High upfront cost. 
• Clunkier interface compared to standalone routers. 

How Do I Choose a Cable Modem?

When choosing a modem, you must match the modem’s capability to your cable internet speed tier. For example, if you pay for Gigabit speed, you must have a DOCSIS 3.1 modem to utilize it. Using an older DOCSIS 3.0 modem on a Gigabit plan acts as a bottleneck and wastes your money. 

You should also compare Modem-Router Combos vs. Separate Units: 

Gateway (Modem/Router Combo): 

• Pros: Space-saving, simplified "plug and play" setup, fewer wires. 
• Cons: Harder to upgrade single components, potential performance trade-offs, if Wi-Fi standards change (like the move to Wi-Fi 7), you must replace the whole unit.

Separate Units: 

• Pros: Better performance, easier to upgrade individual parts (e.g., keeping your modem but getting a new router), more flexibility. 
• Cons: Takes up more space, requires more cables, slightly more complex setup. 

If Wi-Fi standards change (like the move to Wi-Fi 7), you can replace just the router without buying a new modem.

How Do I Install My Cable Modem?

Once you have purchased your new device, installation is straightforward. 

1. Disconnect the Old: Unplug your old modem's power and coaxial cables. 
2. Connect the New: Screw the coaxial cable from the wall into the new modem. Connect the power adapter. 
3. Link to Router/PC: Use a high-quality Ethernet cable to connect the modem to your router or computer. 
4. Activate: Wait for the modem lights to stabilize. Follow your provider’s instructions to register and activate your device. 
5. Optimize and Test: Once connected, optimize your router and Wi-Fi settings. Finally, run a test using a tool to confirm you are getting the speeds you pay for.

Maintenance and Troubleshooting Tips

To keep your new hardware running smoothly, regular maintenance is key. 

• Monitor Performance: Set aside time monthly to check your speeds. If you notice internet speed fluctuations, it might be time for a reset. 
• Update Firmware: Keep your device secure by ensuring firmware is up to date. This protects against common online scams and vulnerabilities. 
• Check Placement: Ensure your modem (or router) is in a central, elevated location. Avoid placing it near obstructions like large furniture or appliances that can block signals. 
• Isolate Issues: If you experience drops, determine if it's the modem or the Wi-Fi. Connecting directly via Ethernet can help you decide if you need to troubleshoot your router instead.

Price and Budget Considerations

Conduct thorough price comparisons among brands. A modem isn't merely a purchase; it forms the foundation of your internet experience. Buying your own can help you save money on your internet bill by eliminating monthly rental fees, which can add up to $180 per year.

Future-Ready Connectivity Starts with Hardware

Upgrading your cable modem is one of the most effective ways to improve your home network. By moving to DOCSIS 3.1 (or even DOCSIS 4.0 where available), you future-proof your connection, eliminate monthly rental fees, and ensure you get every megabit of speed you pay for. Whether you choose a powerhouse like the Netgear CM2050V or a reliable all-in-one like the ARRIS G36, the right modem transforms your digital experience from good to exceptional.