Beyond finding the correct sort of modem for your kind of internet, you must make sure you buy a modem that’s supported by your ISP. If that’s the case, then you might want the best cable modem to supply the speed that you’re paying for.

You may be able to save money and get faster speeds by buying a cable modem rather than renting one from your ISP. Here is what you want to understand. If you have cable net, you likely lease your modem from the service provider for a monthly fee on top of your online program – typically between $5 and $10 a month.

The best cable modems It may help save you money over the long haul by placing a stop to monthly fee your online service provider charges for leasing you among its modems.

We’ve examined over a dozen different devices, and we found the ideal modem for you, considering several aspects such as dependability, compatibility with a vast collection of internet providers and warranty just in case anything goes wrong.

The Best Cable Modems: Top 3

You can save hundreds of dollars by buying a cable modem. Here are the best modems on the market today.

Cable Modem ModelDOCSIS ChannelMax SpeedWeightPrice
MOTOROLA MB762124x8 DOCSIS 3.01000+ Mbps1.12 ouncesMore Info
NETGEAR CM70032x8 DOCSIS 3.0Up to 500Mbps1.2 poundsMore Info
ARRIS Surfboard AC160016x4 DOCSIS 3.0Up to 686Mbps1.96 poundsMore Info

Product Reviews – Best Cable Modems 2020

1. MOTOROLA MB7621 – DOCSIS 3.0 Downloads 1,000 Mbps

MOTOROLA MB7621 Cable Modem
MOTOROLA Cable Modem, Model MB7621

Is one the best modem since this cable modem’s one 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. However, this cable modem does not have a built-in wireless router or telephone call capability.

Setup is fast and easy using the Quick Start guide. Additional experienced USA-based Motorola customer support specialists are happy to help if you need them in English or Spanish.

The MOTOROLA MB7621 has attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment.  

2. NETGEAR Modem CM700 – Compatible with all Cable Providers

If you want to swap your modem. There are not problems with the NETGEAR CM700 since is compatible with all major cable providers including certification with Xfinity by Comcast, Spectrum, and COX.

However, take in account that is not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirectTV, DISH and any bundled voice services.

You can save monthly rental fees with this Model CM700 up to $150/yr in equipment. One of its characteristics is the speed up to 500 Mbps or even 2000Mbps for cable provider plans.

You able to connect to any WiFi router to this modem’s ethernet port to support all your wireless devices and is engineered with 32×8 channel bonding and DOCSIS 3.0

3. ARRIS Surfboard AC1600 – Docsis 3.0 Dual Band Wi-Fi Router

ARRIS Surfboard AC1600
ARRIS Surfboard (16×4) Docsis 3.0 Cable Modem Plus AC1600

The SURFboard SBG10 unites a DOCSIS 3.0 cable modem with an 802.11ac Wi-Fi router with two one-gigabit Ethernet ports. It has 16 downstream and 4 upstream channels and AC1600 Wi-Fi, which makes it a ideal choice for homes with less devices to handle. The all-purpose modem & Wi-Fi router combo means no more managing a number of devices. Plus, it saves you money on monthly modem rental fees and fits easily into almost any home office.

Compatible with major U.S. cable internet providers such as Cox, Spectrum, Xfinity and many others. If you are unsure about compatibility, check your ISP website or the ARRIS website to verify.

Buying Guide to Choose the Right Cable Modem

Since price is also an important factor when modem purchasing, we also monitor retail websites for the best deals on the modems we’ve examined. In addition to using the modems in a home with multiple connected laptops, smartphones and tablets, we also assess the indicator lights on each modem to find they’re visible.

The right cable modem for you is what is compatible with your ISP and your plan and offers the best balance of price and features (and of course a good guarantee). The best modems support DOCSIS 3.0 or 3.1, and therefore are compatible with all the main US cable companies, namely Charter/Spectrum, Comcast, and Cox. Most of these models cost $100 or less (excluding the DOCSIS 3.1 options), so if you are paying $10 per month to rent your modem, you will make back your investment in under a year.

If you have a fee on your invoice, you can save between $60 and $120 each year by purchasing your own modem instead of leasing. Sure, you’ll need to pay more up front–many modems cost between $50 and $100–but within a year, you’ll have recouped the cost of these charges, and you’re going to begin saving $10 per month.

There are some benefits to leasing, though. When you lease a modem, you can trade it in when it becomes obsolete or if it stops working. Additionally, you don’t need to worry about compatibility or replacing the device if something goes wrong–instead of troubleshooting problems on your own, your ISP can just swap it out to you. Some ISPs incorporate the price of a modem in your package pricing too, and in those situations, you won’t save some money by purchasing your own.

Additionally, some ISPs might not even let you purchase your own modem. If you have DSL or fiber, then you can’t use a cable modem; each utilizes specific equipment that you are going to need to rent or purchase from your ISP. In addition, if you bundle your home phone service with your internet plan, you’ll need a modem that has a phone port.


Is important to check is whether your modem works with your ISP. The modem also supplies the great download speeds, although exact specifications will be contingent on your internet router.

The secret to deciding upon a cable modem is making sure it supports whatever download speed your individual plan provides. If you get a typical cable modem and you would like WiFi, you’ll have to obtain a separate wireless router.


Consider your current internet plan and whether you may want to upgrade in the next year or so, then choose your modem accordingly. Along with the list of modem compatibility, your ISP probably includes which modems it recommends for each plan tier.


Simplicity of use while all modems work more or less the exact same, they aren’t guaranteed to all have the identical interface.


We recommend purchasing a modem that costs less than the rental fees for its warranty term. If you buy a modem with a 1-year warranty, it should cost less than a year’s worth of rental fees. 

Modems vs. Routers

Modern-day routers are compatible with just about every single modem available on the market, so just make certain your firmware is upgraded, and you’re going to be all set.

Finding a different router and modem provides you with lots of flexibility since if you would like to upgrade your house network to have faster speed or more features, you only need to replace the router. Moreover, the wireless modem router delivers built-in WPA2 encryption for additional security, in addition to a built-in firewall.

Separate devices have the benefit of becoming more flexible regarding upgrades, and if one-piece breaks, you don’t need to replace the entire system.

DOCSIS 3.0 vs DOCSIS 3.1

Exactly like routers, even more costly modems provide quicker speeds–so long as you’ve got a fast-enough plan with your ISP. Conversely, if you pay for a super-fast internet package but purchase an inexpensive modem, you might not be receiving those advertised speeds. So, it’s very important to compare the modem’s specs into your online plan before you buy.

The maximum speed of your modem depends on the Data Over Cable Service Interface Specification (DOCSIS), a telecommunications benchmark used to give internet access over a cable modem. The current standard is DOCSIS 3.0, and most ISPs require a DOCSIS 3.0 or modem if you are adding a new one to your strategy.

DOCSIS 3.0’s highest potential rate is 1Gbps, also called “Gigabit internet.” But there is also a brand-new standard, known as DOCSIS 3.1, which maxes out at a whopping 10Gbps. Most customers will not find speeds that high right now, but in the long run they could.

Some providers offer 1Gbps plans over DOCSIS 3.0, while others require a DOCSIS 3.1 modem. On the other hand, the 2 modems that support gigabit plans on DOCSIS 3.0 use a faulty Intel Puma 6 chipset, which can introduce latency into your connection. Because of this, we advocate skipping them.

DOCSIS 3.1 modems are backward compatible with DOCSIS 3.0, so even if your supplier does not need it you may use it with your plan. They’re, however, more costly –but then again, are gigabit plans, even as they gradually becoming more widely accessible.

In case you’ve got a slower plan and decide to go with a DOCSIS 3.0 modem, you’ll want to check at another spec: the variety of downstream and upstream channels it supports. Originally, DOCSIS utilized one channel for downloading data and one channel for uploads. DOCSIS 3.0 enables modems to combine multiple channels to flow data, increasing the speed of both downloads and uploads.

By way of example, 8×4 modems–that is, modems with eight extended channels and four upstream channels–encourage a theoretical max of 343Mbps. A 16×4 modem normally tops out at approximately 680Mbps for downloads. Nonetheless, these are only theoretical maximums–your ISP may only support certain modems up to a certain rate, so assess its compatibility list before putting too much stock in the theoretical numbers.

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