6 Best Approved Cable Modems For Cox In 2024 [Full List]

Note, no device can get you faster internet speeds than your internet plan provides.

Also, get the device you need. A modem and a router are not the same things. Some types of internet require both others only one. If you are uncertain, click here

Today, I’m going to show you what I think are the best-approved modems to upgrade to as a Cox internet customer.  

Cox approved modems and routers

How do I know this? Well, with the Networks Hardware team, I’ve been testing tons of modems and with the results, I’m ready to show you the best Cox approved ones for you to buy.

If you’re looking for pure value for money, I recommend the Motorola MB8600. Because it’s fast and future-proof for a good price.

Motorola MB8600
Source: Motorola.com

Motorola MB8600 - Editors Choice’s

Best Overall

  • Type: Cable Modem
  • Recommended for: Any Cox plan
  • DOCSIS: 3.1
  • Warranty: 2 years
  • Chosen as: Best Overall

However, if you’re looking for a modem that’s better for gaming or perhaps even a modem/router combo, one of my other top picks may work out better for you. 

So stay tuned!

Top 6 Approved Cox Modems

The rankings are in. Here they are:

  1. Best overall modem: Motorola MB8600
  2. Best modem for Cox Gigablast (1000 Mbps): Arris Surfboard S33
  3. Best budget modem: Netgear CM600
  4. Best modem/router combo: Netgear C7800
  5. Best gaming modem/router combo: Netgear CAX80
  6. Best budget modem/router: Motorola MG7700

Best Cox Compatible Modems in 2024

I’m about to show you more about each of my top picks in more detail.

#1 Best Overall Modem – Motorola MB8600

Motorola MB8600
  • Type: Cable modem
  • Recommended for: Any Cox plan
  • DOCSIS: 3.1
  • Warranty: Two years
  • Top WAN speed: 2000 Mbps


  • Very future proof
  • Two years of warranty
  • Compatible with major providers


  • It could be excessive for very slow plans

In terms of value for money, my favorite approved Cox modem is the Motorola MB8600. It has a lot of power and boasts the latest modem technology. 

That latest modem technology is something called DOCSIS 3.1. DOCSIS is the telecommunication standard that gets a connection into your home. Having the latest version improves performance and means your modem will be relevant for longer.

There’s no multi gig port here, but that’s not an issue for Cox plans for two reasons. A) Cox doesn’t have any plans faster than 1000 Mbps and b) there’s a feature called ethernet aggregation. 

This combines the power of two Gigabit ethernet ports into one so you can get speeds to your router of up to 2000 Mbps. So if Cox brings out a faster plan that you want in on, you can do that with this modem. 

It also has good compatibility with other ISPs if you do want to change and comes with two years of warranty. That means you’ll be protected against any faults with the modem for twice as long as the legal minimum.

In fact, the only real ‘downside’ we could find with this modem is that it might be a little excessive for the current Cox plans. But for the price you pay, this is hardly anything to be worried about. 

So overall, the Motorola MB8600 is a fantastic option for all Cox customers. Even those on the current fastest plan.

#2 Best for Cox Gigablast (1000 Mbps) – Arris Surfboard S33

Arris S33
  • Type: Cable modem
  • Recommended for: Cox Gigablast (1000 Mbps)
  • DOCSIS: 3.1
  • Warranty: Two years
  • Top WAN speed: 2500 Mbps


  • Good value
  • Super fast
  • Future proof 


  •  Not the most practical hardware

Another great option for the fastest Cox internet plans is the Arris Surfboard S33. Again, this modem is fairly affordable and offers a lot of speed. 

Once again, this modem has the latest DOCSIS technology 3.1. So, it’ll be future proof and it offers the best performance for powering the network in your home right now.

This modem is going to be a little more expensive than our top pick overall and part of the reason for that is that it has a multi gig port. This allows for speeds of up to 2.5 Gbps on a single port.

Of course, this is a little relevant for Cox right now due to their fastest plan being 1000 Mbps. But if you feel like you might want to change in the future, this modem leaves the door open to be able to do that.

Once again, there are two years of warranty so you’ll get that extra peace of mind that you’re going to be protected against any issues.

One small issue with this option is that the hardware design isn’t the best. It’s a little bulky and it doesn’t look amazing, so if you care a lot about aesthetics, the Motorola option might still be better for you.

But that’s a minor detail, because this is still a really great modem for all Cox plans.

#3 Best Budget Modem – Netgear CM600

Netgear CM600
  • Type: Cable modem
  • Recommended for: Plans up to Cox Ultimate (500 Mbps)
  • DOCSIS: 3.0
  • Channels: 24×8
  • Warranty: One year
  • Top WAN speed: 960 Mbps


  • Very affordable
  • Enough for most plans


  • Not future proof
  • One year warranty

You may well be able to save a bit of money with your next modem if you opt for the Netgear CM600. But don’t do that if you have the Cox Gigablast (1000 Mbps) plan. 

The top WAN speed of this modem is 960 Mbps. But it could be less than that at times. As such, I wouldn’t recommend it for the Gigablast (1000 Mbps) plan. But I would recommend it for all the other Cox plans. 

You will need to consider the fact that this modem won’t be as future proof as our other picks so far. That’s because it’s a DOCSIS 3.0 modem with 24×8 channels instead of a 3.1 modem. This older technology is likely to become redundant a lot earlier. 

It does look pretty cool for a budget modem and it’s quite small so it should fit on most shelves around your home. 

So if you need a temporary-ish modem for anything but the fastests, this could be a great option to go for. It’ll certainly save you quite a bit of cash compared to our top two picks.

#4 Best Modem/Router Combo – Netgear C7800

Netgear C7800
  • Type: Gateway (modem/router combo)
  • Recommended for: Plans up to Cox Ultimate 500
  • DOCSIS: 3.1
  • Warranty: One year 
  • Wi-Fi Standard: Wi-Fi 5
  • Tested max Wi-Fi speed: 513.64 Mbps


  • Quick
  • Latest technologies
  • Good range


  • Not brilliant features

Some users like to make life a little easier by combining their modem and router into a single device, often known as a modem/router combo or a gateway.

If you like the sound of that, the best option overall for value for money is the Netgear C7800.

It has the latest modem technology with DOCSIS 3.1. So, you could keep hold of this modem for quite some time without having to worry about its technologies becoming outdated. 

However, it is only a Wi-FI 5 router which is what brings the speed (and the price) down a little.

The only reason I wouldn’t recommend this device as a whole for the Cox Gigablast (1000 Mbps) plan is that the Wi-Fi speed isn’t quite up to it. We managed to record a top speed of 513.64 Mbps when we tested it.

That’s still quite a lot of speed for a gateway and will be more than enough for a large family. But if you have the fastest plans, you’re going to be wasting money with this device.

This gateway will offer enough range for a medium-sized home. We found the overall connection to last up to around 80-90 ft.

The C7800 has QoS and parental controls. This means you’ll be able to select priority devices for an injection of speed and you’ll be able to block harmful content to particular devices on the network. 

However, their functionality is quite limited compared to buying a router separately. 

Regardless, this is our favorite modem/router combo right now in terms of pure value for money. 

#5 Best Gaming Modem/Router Combo – Netgear CAX80

Netgear CAX80
  • Type: Cable modem
  • Recommended for: Any Cox plan
  • DOCSIS: 3.1
  • Warranty: Two years
  • Wi-Fi standard: Wi-Fi 6
  • Tested max Wi-Fi speed: 800 Mbps


  • Extremely fast
  • Wider range
  • DOCSIS 3.1


  • Very expensive

If you want to max out your Cox Gigablast (1000 Mbps) over Wi-Fi, the Netgear CAX80 will allow you to come very close.

When we tested the Wi-Fi speed, we managed to record an almighty 800 Mbps+ (limited by our plan). That’s about as fast as it gets for a gateway, and that’s why I think this is a brilliant option for gamers. 

The range is better here as well at around 90-100 ft. This will open up the device to larger homes and if you have a particularly large home you can always add a Wi-Fi extender. 

You’ll still get parental controls and QoS here but it should be noted that their scope is pretty limited as is often the case with gateways. 

You’ve probably guessed already that this is a DOCSIS 3.1 and a Wi-Fi 6 device. So, it offers the latest technologies for the best in future proofing. So you will be able to have it for years. 

The only real downside is the fact that this is going to be an expensive option. Nonetheless, it’ll still work out cheaper than buying particular combinations of standalone modems and routers.

If you’re willing to make the investment and you’re a keen gamer, take a good look at the Netgear CAX80.

#6 Best Budget Modem/Router Combo – Motorola MG7700

Motorola MG7700
  • Type: Gateway (modem/router combo)
  • Recommended for: Cox Essential 100 and Preferred 250 (100 Mbps and 250 Mbps)
  • DOCSIS: 3.0
  • Warranty: Two years
  • Channels: 24×4
  • Wi-Fi standard: Wi-Fi 5
  • Tested max Wi-Fi speed: 441.28 Mbps


  • Affordable device
  • Easier
  • Fast enough for two plans


  • Not future proof

You can save money on a gateway device without having to compromise too much on speed with the Motorola MG7700.

We still managed to record a speed of 441.28 Mbps with this device which is pretty good. It means it will be fitting for the Cox Essential 100 and Preferred 250 plans (100 Mbps and 250 Mbps). 

The range is about average at around 80-90 ft which is enough for a medium-sized home and you can always extend that if you want to.

One downside is that this gateway uses older technology such as the DOCSIS 3.0 with 16×4 channels and Wi-Fi 5. So you may find that Cox support for it won’t last forever. 

But that’s part of what helps bring the price down, because this is a very affordable device. And it even comes with QoS and parental controls, even though they’re not the best in the world.

Nonetheless, it’s a neat quick fix for the two slower Cox plans. 

Complete List Of All Cox Approved Modems

Here is the list of all the Cox-approved modems. [1]

BrandModel #RouterChannelsDOCSISPuma ChipsetVoIPBest for plan
ARRISDG2460Yes24×83.0YesNoUltimate 500
ARRISSB6141No8×43.0NoNoPreferred 150
ARRISSB6180No8×43.0NoNoPreferred 150
ARRISSB6182No8×43.0NoNoPreferred 150
ARRISSB6183No16×43.0NoNoPreferred 150
ARRISSB6190No32×83.0YesNoUltimate 500
ARRISSBG10Yes16×43.0YesNoPreferred 150
ARRISSBG6400Yes8×43.0NoNoPreferred 150
ARRISSBG6580Yes8×43.0NoNoPreferred 150
ARRISSBG6700Yes8×43.0NoNoPreferred 150
ARRISSBG6782Yes8×43.0NoNoPreferred 150
ARRISSBG6900Yes16×43.0NoNoPreferred 150
ARRISSBG6950Yes16×43.0YesNoPreferred 150
ARRISSBG7400AC2Yes24×83.0YesNoUltimate 500
ARRISSBG7580Yes32×83.0YesNoUltimate 500
ARRISSBG7600AC2Yes32×83.0YesNoUltimate 500
ARRISTG1682Yes24×83.0YesYesUltimate 500
ARRISTG2472Yes24×83.0YesYesUltimate 500
TechnicolorCGM4331 Yes32×83.1NoYesGigablast
MotorolaMB7220No8×4 3.0NoNoPreferred 150
MotorolaMB7420No16×43.0NoNoPreferred 150
MotorolaMB7621No24×83.0NoNoUltimate 500
MotorolaMG7310Yes8×4 3.0NoNoPreferred 150
MotorolaMG7315Yes8×43.0NoNoPreferred 150
MotorolaMG7540Yes16×43.0NoNoPreferred 150
MotorolaMG7550Yes16×43.0NoNoPreferred 150
MotorolaMG7700Yes24×83.0NoNoUltimate 500
NetgearC3000Yes8×4 3.0NoNoPreferred 150
NetgearC3000v2Yes8×4 3.0NoNoPreferred 150
NetgearC3700Yes8×43.0NoNoPreferred 150
NetgearC3700v2Yes8×43.0NoNoPreferred 150
NetgearC6220Yes8×43.0NoNoPreferred 150
NetgearC6230Yes16×43.0NoNoPreferred 150
NetgearC6250Yes16×43.0NoNoPreferred 150
NetgearC6300Yes16×43.0YesNoPreferred 150
NetgearC6300BDYes8×43.0YesNoPreferred 150
NetgearC6300v2Yes16×43.0YesNoPreferred 150
NetgearC6900Yes24×8 3.0NoNoUltimate 500
NetgearC7000Yes24×83.0NoNoUltimate 500
NetgearC7000v2Yes24×83.0NoNoUltimate 500
NetgearC7500Yes24×83.0NoNoUltimate 500
NetgearCBR40Yes32×83.0YesNoUltimate 500
NetgearCG3000DYes8×43.0NoNoPreferred 150
NetgearCG3000Dv2Yes8×43.0NoNoPreferred 150
NetgearCG4500BDYes8×43.0NoNoPreferred 150
NetgearCM400No8×43.0NoNoPreferred 150
NetgearCM500No16×43.0NoNoPreferred 150
NetgearCM600No24×83.0NoNoUltimate 500
NetgearCM700No32×83.0YesNoUltimate 500
Asus CM16No16×43.0NoNoPreferred 150
Asus CM32Yes32×83.0YesNoUltimate 500
Cisco DPC3008No8×43.0NoNoPreferred 150
Cisco DPC3010No8×43.0NoNoPreferred 150
Cisco DPC3825Yes8×43.0NoNoPreferred 150
Cisco DPQ3212No8×43.0NoYesPreferred 150
Cisco DPQ3925Yes8×43.0NoYesPreferred 150
D-LinkDCM301No8×43.0NoNoPreferred 150
Zyxel CDA-30360No8×4 3.0NoNoPreferred 150
Linksys CG7500Yes24×83.0YesNoUltimate 500
Linksys CM3008No8×43.0NoNoPreferred 150
Linksys CM3016No16×43.0YesNoPreferred 150
Linksys CM3024No24×83.0YesNoUltimate 500
SMC D3CM1604No16×43.0NoNoPreferred 150
TP-LINKTC-7610No8×43.0NoNoPreferred 150
TP-LINKTC-7620No16×4 3.0NoNoPreferred 150
TP-LINKTC-7650No24×83.0NoNoUltimate 500
TP-LINKTC-W7960Yes8×43.0NoNoPreferred 150
TP-LINKCR500Yes16×43.0NoNoPreferred 150
TP-LINKCR700Yes16×43.0NoNoPreferred 150
TP-LINKCR1900Yes24×8 3.0NoNoUltimate 500
Ubee DDW365Yes8×43.0NoNoPreferred 150
Ubee DDW366Yes8×43.0NoNoPreferred 150
Ubee DVW326Yes8×43.0NoYesPreferred 150
Zoom 5341JNo8×43.0NoNoPreferred 150
Zoom 5345No8×43.0NoNoPreferred 150
Zoom 5350Yes8×43.0NoNoPreferred 150
Zoom 5352Yes8×43.0NoNoPreferred 150
Zoom 5354Yes8×43.0NoNoPreferred 150
Zoom 5360No8×43.0NoNoPreferred 150
Zoom 5363Yes8×43.0NoNoPreferred 150
Zoom 5370No16×43.0NoNoPreferred 150

Puma chipset is a chip linked with latency issues. Even though many of its problems are fixed, I still recommend avoiding modem using it. 

Modems for Cox: My Buying Guide 

To help you make the right call on your router, I’ve put together some tips on what to look out for as you buy one. 

If you get to the end of this article and feel like you need more information about buying a modem, head on over to this guide.

Should you actually upgrade in the first place?

The cost of a gateway device from Cox is $12 per month or $144 per year. Some of our modems cost less than $144 so I recommend upgrading for cost alone.

The modem is okay but you’ll definitely find better quality in my top picks above. If you want to keep your modem for a while, it’s a no brainer to upgrade for me. 

Your new modem’s speed

Firstly, take a look at the main Cox internet plans here:

PlanRecommended Wi-Fi StandardRequired ChannelsRequired DOCSIS
Essential 100 (100 Mbps)Wi-Fi 4 or 58×4 or more3.0 or 3.1
Preferred 250 (250 Mbps)Wi-Fi 58×4 or more3.0 or 3.1
Ultimate 500 (500 Mbps)Wi-Fi 5 or 624×8 or more3.0 or 3.1
Gigablast (1000 Mbps)Wi-Fi 6 or 6eN/A3.1

Which one do you have or which one are you interested in? And what kind of speed do you need?

We tested modems above to find out which are best for which plans but if you want to go for something else, make sure you consider the max speed of your modem.

You can take a look at the Cox internet plans in more detail here.

DOCSIS and modem channels

DOCSIS 3.1 is a newer, better-performing and more future-proof technology but DOCSIS 3.0 is more affordable.

But what is DOCSIS? Well, it’s the technology that converts your incoming network to a network that works locally in your home.

I generally recommend DOCSIS 3.1 as ISPs are phasing out support for DOCSIS 3.0. However, if you want a quick fix, you can save some money by going for a DOCSIS 3.0 modem for now. It’s not going to be as fast though! 

You can read more about the differences between the two standards here.

DOCSIS 3.0 benefits

  • Cheaper
  • Enough for some plans

DOCSIS 3.1 benefits – Our recommendation

  • Faster
  • More future proof

Ethernet ports

The ethernet output of your modem has a direct effect on the speed of your network. Most modems have Gigabit ethernet ports meaning they can pass speeds of 1000 Mbps.

Some will offer a feature called ethernet aggregation which combines two of these ports together for a total speed of 2000 Mbps. 

The problem with this is that some routers will be incompatible with it and you’ll need the Cox Ultimate (500 Mbps) plan or above to get two IP addresses. 

Others will instead have a multi gig port which generally boosts the speed of a single port up to 2.5 Gbps. This is a lot easier than ethernet aggregation. 

Make sure you opt for the ports that are fast enough for your plan. 

Buying a modem/router combo or keeping them separate

We’ve listed a handful of modems and gateways today but I generally recommend keeping the modem and router separate.

This is likely to work out more expensive overall but it has a few key benefits. You’re probably going to get faster speeds overall for a start. And, it’s likely that you’ll get better features like QoS and parental controls. 

If you want some more support with making this decision, you can check out this article

Separate modem and router device benefits

  • Cheaper
  • Easier

Modem/router combo benefits

  • Faster
  • More features

Hardware warranty

The warranty period of your modem shows you how long you’re going to be protected against any issues you may incur with the hardware.

If the modem breaks down of its own accord during the warranty period, the manufacturer will foot the bill.

Some manufacturers offer the legal minimum of one year but others ramp this up to two years and sometimes even more. 

Voice Support (VoIP)

If you have a Cox Voice plan, the bad news is that you will not be able to upgrade your modem. Voice plans don’t support third party modems. You’ll have to stick with the standard Cox modem if you have a landline plan. 

The only thing you can do is get another modem and use it for the internet and the voice modem for the telephone if you want to. But honestly, it is a bit unnecessary. 

Cox Approved Modems FAQ

Check out the answers to the most common questions about approved Cox modems below. 

Do I need DOCSIS 3.1 for Cox?

The only Cox plan that specifically requires you to use a DOCSIS 3.1 modem is the Gigablast one. This will not work with the DOCSIS 3.0 modems.

For any other plan, you don’t need a DOCSIS 3.1 modem. Although, I still recommend buying one if it’s within your budget as it will stay future proof for longer. DOCSIS 3.0 support will eventually fade out. 

Do Cox fiber plans also require a modem?

There aren’t any fiber plans from Cox yet. However, they have invested a large amount of money into getting into the fiber market, so this is something you’ll need to think about the future.

You won’t actually need a modem if you end up with a fiber plan. So, just pick up a router upgrade instead.

How do I find out if a modem is actually compatible with Cox?

Cox has provided a handy list of all the modems they support. You can find it here.

Approved Modems for Cox: My Conclusion

I’m pretty confident that the best standalone approved Cox modem for value for money is the Motorola MB8600. I’m also confident that the best modem/router combo is the Netgear C7800.

You might prefer to save some money or even ramp up the performance further though, so be sure to consider our other picks. And, take note of our buying guide so that you can make the right call overall. Enjoy. 

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5 thoughts on “6 Best Approved Cable Modems For Cox In 2024 [Full List]”

  1. Hi Andreas,
    Great article but have a question regarding on whether these modem will work on Cox fiber system as well. Or would it require a different modem? Thanks!

    • Hi Ron,

      Thanks for your comment. No, you don’t need a modem for Cox fiber internet.

      You should have got an ONT with an Ethernet connection from Cox when they installed the fiber internet.

      This Ethernet connection connects with any router. Meaning that’s all you need.

      If you want some help choosing, check out our article on the best routers for Cox. Just don’t get any of the modem/router combos from the article.

      Hope this help!

  2. Wow! Thank you, Andreas. I have bookmarked your site. I’m a senior and am debating cutting the cord with Cox except for the internet. Your information simplifies what I need to do, though I am still a little uneasy about the change.


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