Why You Should Stop Renting Your Cable Modem Today
If you are a cable internet subscriber, there is a good chance you are quietly paying your internet service provider (ISP) a monthly modem rental fee without giving it much thought. These fees typically range from $10 to $15 per month, and many providers increase them on an annual basis. That means you could be spending anywhere from $120 to $180 every single year — just for the privilege of using a piece of hardware that your ISP owns. Over three or four years, that amount balloons into several hundred dollars, all for a device that you could have simply purchased outright.
The good news is that buying your own cable modem is one of the easiest and most impactful steps you can take to reduce your monthly internet bill. In most cases, a quality modem will pay for itself within the first year or two of ownership. Even if you need to buy a separate wireless router to go along with it, the combined cost of both devices is almost always less than what you would spend renting a modem over a two-year period. And unlike a rental unit, a modem you own is yours to keep and use for years to come.
What Is a Cable Modem and How Does It Work?
Before diving into recommendations, it helps to understand what a cable modem actually does. A cable modem is the device that connects your home to your ISP's network via a coaxial cable — the same type of cable used for cable television. It translates the data signal coming through that cable into a format that your devices can understand and use to access the internet.
Many ISPs supply customers with a combination device that functions as both a modem and a wireless router in one unit, often called a gateway. While these all-in-one devices are convenient, they are usually mediocre in terms of performance and tend to be the most expensive rental options. Separating the two functions — using a standalone modem paired with a quality third-party router — typically delivers better performance, greater control, and significant long-term savings.
Our Top Pick: The Arris SURFboard S33
After researching nearly 100 cable modems over the past seven years, the Arris SURFboard S33 stands out as the best cable modem for the vast majority of households. It is compatible with most major cable internet providers in the United States, including Xfinity, Cox, and Spectrum, and it supports a wide range of internet speed tiers — making it a versatile choice whether you are on a basic plan or a high-speed gigabit connection.
The SURFboard S33 uses the DOCSIS 3.1 standard, which is the latest widely adopted protocol for cable internet. This matters because DOCSIS 3.1 is significantly faster and more efficient than the older DOCSIS 3.0 standard, supporting download speeds of up to 10 Gbps theoretically. For practical purposes, this means the S33 is more than capable of handling current gigabit internet plans and is also well-positioned to remain useful as ISPs continue to upgrade their networks in the years ahead.
Key Features of the Arris SURFboard S33
- DOCSIS 3.1 technology: Future-proofs your setup and supports multi-gigabit speeds when your provider offers them.
- 2.5 Gbps Ethernet port: The S33 includes a 2.5 Gbps Ethernet port, which allows you to take full advantage of high-speed plans without a bottleneck at the connection point between your modem and router.
- Broad ISP compatibility: Works with most major cable providers across the United States, though it is always worth confirming compatibility with your specific ISP before purchasing.
- Compact and simple design: The device has a small footprint and straightforward setup process, making it approachable even for those who are not particularly tech-savvy.
- No monthly fees: Once you buy it, it is yours — no ongoing rental charges attached to it whatsoever.
How Much Money Can You Actually Save?
Let's put the savings into concrete terms. If your ISP charges you $14 per month to rent a modem, you are spending $168 per year. The Arris SURFboard S33 typically retails for around $90 to $130, depending on where you buy it and whether it is on sale. That means you would break even in less than 12 months in many cases. After that point, every month you use your own modem is pure savings.
Over five years, the difference is dramatic. Five years of modem rental at $14 per month comes out to $840. A one-time purchase of a quality modem like the S33 paired with a solid mid-range router might cost you $200 to $250 total — saving you well over $500 across the same period. The math is difficult to argue with.
Things to Consider Before You Buy
While buying your own modem is almost always a smart financial decision, there are a few factors worth keeping in mind before you make a purchase. First, confirm that the modem you want is approved by your specific ISP. Most providers maintain an approved device list on their website, and purchasing a modem that is not on that list can lead to activation headaches or outright incompatibility.
Second, consider the internet plan you currently subscribe to, as well as any upgrades you might want in the future. Buying a modem that only supports speeds up to 300 Mbps when you are planning to upgrade to a gigabit plan within the next year would be a wasted investment. The Arris SURFboard S33 handles this concern well by supporting speeds well beyond what most residential customers need today.
Third, remember that a modem alone does not create a Wi-Fi network in your home. You will also need a router — or a mesh Wi-Fi system — to distribute the internet connection wirelessly throughout your space. Factor that cost into your planning if you do not already own one.
The Bottom Line
Paying a monthly modem rental fee is one of those recurring expenses that is easy to overlook but surprisingly costly over time. Buying your own cable modem is a straightforward way to take back control of your internet bill, and the Arris SURFboard S33 is the best option available for most households. With its DOCSIS 3.1 support, 2.5 Gbps Ethernet port, and broad compatibility with major ISPs, it delivers the performance and future-readiness you need at a one-time cost that pays for itself quickly. If you have not yet made the switch, now is an excellent time to start saving.