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The modem provided by Optimum often experiences speed drops, congestion, and packet loss, resulting in slow internet. Replacing it with a third-party device is a smart move as it not only fixes connectivity issues but also removes the rental lease.

Over the past three months, I've tried 21 modems that are compatible with Optimum and evaluated each on various parameters including speeds, upstream/downstream power, signal noise ratio, data packet loss, and more.

Based on intensive tests, I have handpicked the top 7 options that cater to varying user needs. So, whether you're on the fastest 1 Gig, mid-range 500 Mbps, or slowest 300 Mbps connection, you'll find an ideal match.

7 Best Compatible Modems for Optimum in 2024

Although there is a long list of supported devices, not all of them are good, as some are underpowered models that should be avoided at any cost. Rest assured, if you choose any of the recommendations below, you won't be disappointed.

That said, let's dive into the reviews.

1. Best Overall: Motorola MB8611

SALE
Motorola MB8611
  • Supported Plans: Up to 2.5 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 1 x 2.5 Gig Ethernet
  • Modem/Router Combo: No

Motorola MB8611 is one of the fastest and future-proof cable modems that readily tops on my list. With 32 x 8 DOCSIS 3.1 tech and a multi-gig port, it’s capable of supporting plans up to 2.5 Gbps.

Furthermore, it's one of the few models to support AQM (Active Queue Management) so you can expect low-latency gaming and streaming.

Speeds & Performance

To justify the multi-gig speed support, you need a suitable router and internet plan, which in my case was Netgear Nighthawk RAXE300 and Optimum 2 Gig plan. And I used my go-to MacBook Pro 16″ to record the results at different locations.

With the test device 20 feet away from the modem and router, download speeds could reach up to 1.84 Gbps, while uploads clocked at 1.63 Gbps.

Motorola MB8611 Speed Test

Moving the test device farther away to 40 feet, the respective speeds maxed out at 811 Mbps and 697 Mbps. When you see such speeds, the first thing that comes to mind is how your online games would perform.

I played Overwatch for an hour, and let me tell you, there weren’t any lags or latencies, and ping and frame rates stayed around 10ms and 91 throughout.

Ports & Design

There are three inputs, one is a power unit, one Ethernet port, and another for coaxial cable. The Ethernet port has a maximum cap of 2.5 Gbps. Connected to it, games saw an improvement, with values staying at 6ms and 121 FPS.

In terms of design, Motorola hasn’t let their creative juices flow and kept the look rather standard. It comes in a box-shaped design. In the front, there are five LED indicator lights for status reporting.

Besides, its side panel is well-ventilated, keeping it exceptionally cool, especially under demanding conditions.

Conclusion

Overall, Motorola MB8611 is the top-rated cable modem that works with Optimum. It is known for its future-proof standard and powerful hardware. Its AQM functionality does a great job in traffic prioritization, which resulted in lower latency and, an excellent gaming performance.

For more information, refer to our Motorola MB8611 review.

Pros

    • Multi-gig internet speed
    • DOCSIS 3.1 technology
    • Works with multiple ISPs
    • AQM for lower latency
    • Easy to setup

Cons

    • Single ethernet port

2. Best Runner-Up: ARRIS SURFboard S33

Looking for a device with at least two Ethernet ports that match the performance of Motorola MB8611? Look no further than ARRIS S33.

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ARRIS SURFboard S33
  • Supported Plans: Up to 2.5 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 1 x 2.5 Gig Ethernet + 1 x Gig Ethernet
  • Modem/Router Combo: No

Next on my list is ARRIS SURFBoard S33, which, courtesy of its DOCSIS 3.1 tech and a 2.5 Gbps port, supports high-Gigabit plans from Optimum. Besides, it builds in 32 x 8 channel bonding to establish stable connections on multiple devices.

Speeds & Performance

With a DOCSIS 3.1 tech with 32 downstream and 8 upstream channels, the S33 claims to support internet plans up to 2.5 Gbps. I established a setup similar to my previous recommendation, and the overall results were great.

In my near-distance test at 20 feet, my Mac recorded respective download and upload speeds of 1.81 Gbps and 1.64 Gbps.

ARRIS SURFboard S33 Speed Test

With such speeds in hand, any of your streaming or gaming tasks seem like child's play. While moving further to 40 feet, I could manage respective speeds of 741 Mbps and 637 Mbps.

In my week of saturation test, passed with flying colors. I played FIFA 23 and it ran at 21ms ping and consistently offered 65 FPS. When used for streaming, I didn't experience any buffers even with two TVs, and Netflix streams on three tablets.

The equipped networking technologies like MU-MIMO and OFDMA ensure that the connections are fast and stable.

Ports & Design

There are four inputs, two Ethernet ports, one power plug, and a coaxial port. One of the two Ethernet ports has a maximum speed cap of 2.5 Gbps, and plugging it in records a maximum download speed of 1.96 Gbps, suitable for high-speed wired connectivity.

Design-wise, it looks great as Arris has tried to give it an aesthetic look. It fits almost anywhere and barely takes any space. But Arris has stepped away from its past designs with multiple lights and features a single, big LED light that changes color based on connection status.

This could be a problem because the blinking lights and colors can be confusing to learn what each light means.

Conclusion

Overall, the SURFboard S33 is the best ARRIS-branded modem that Optimum supports. It has a range of high-end features to deliver reliable network performance. Its speeds are great, and paired with the multi-gig port, any of your gaming or streaming activities runs fine.

What I find a bit below par is the usage of a single light, which sometimes can be confusing. If you want to learn more, check out its full review.

Pros

    • Latest networking traits
    • Multi-gigabit port
    • Fast and stable throughput
    • Sleek and minimal design
    • Easy to install and manage

Cons

    • Single indicator light

3. Best Modem Router Combo: Netgear CAX30S

Want to avoid getting a separate WiFi router for your Optimum connection? Check out the Netgear CAX30S — it's one of the best options available.

Netgear CAX30S
  • Supported Plans: Up to 1 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 4 x Gig Ethernet
  • Modem/Router Combo: Yes

If you're in search of a reliable modem router combo device, nothing gets better than the Netgear CAX30S. It comes equipped with DOCSIS 3.1 & Wi-Fi 6 tech alongside Ethernet ports that support Link Aggregation.

Plus, Netgear offers three months of its Armor 2.0 subscription for free. This will let you access the most advanced security features.

Speeds & Performance

First things first, Netgear CAX30S is a DOCSIS 3.1-certified combo that promises an excellent theoretical throughput of 2.7 Gbps. It further inculcates routing capabilities with dual-band WiFi 6 and respective speed on each band as follows:

5 GHz: 1800 Mbps2.4 GHz: 900 Mbps

With the available speeds and an Optimum Gig internet plan at your disposal, CAX30S helps you churn out almost 803 Mbps for downloads and 41 Mbps for uploads in my close-distance test.

Netgear CAX30S Speed Test

While moving the test device a bit far with two walls in between, the throughput holds steady at 545 Mbps and 32 Mbps, respectively.

Besides the fast speeds, the DOCSIS 3.1 and OFDMA make lives easier for speed fanatics. So despite streaming 4K videos on three devices, my Fifa 23 ran at 21ms and 65 FPS, and there weren’t any missed passes or goals conceded.

Not only speeds, but its built-in antennas also claim to transmit signals as far as 2,500 Sq Ft, and in reality, with multiple obstructions and interferences, I could access the internet within a 2,100 Sq Ft space. And I could connect up to 26 smart devices.

Ports & Design

In the rear panel, there aren’t any multi-gig ports but its four Gig Ethernet ports with link aggregation support on two. It means it supports speeds of up to 2 Gbps, provided you’ve two separate IPs in place.

Netgear CAX30S posits an upright, horizontal structure with sharp and pronounced edges. Made of hardened plastic, its matt-black finish gives it a sleek and aesthetically pleasing design. However, compared to my previous pick, you’ll find multiple LED lights for status indication.

Conclusion

All in all, Netgear CAX30S is undoubtedly the best modem router combination to use with Optimum Online. Although the pricing is a bit steep, its overall performance, reliability, port setup, and security justify every buck you spend on it.

Pros

    • DOCSIS 3.1 and WiFi 6 support
    • Decent wireless coverage
    • Supports Link Aggregation
    • Sleek design

Cons

    • Pricey

4. Best for Home Use: ARRIS SURFboard SB8200

ARRIS SB8200
  • Supported Plans: Up to 1 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 2 x Gig Ethernet
  • Modem/Router Combo: No

Next on my list is yet another ARRIS modem that's certified by Optimum. It supports DOCSIS 3.1 traffic for the users to take advantage of the fastest download speed available with support from 32 downstream and 8 upstream channels.

Aside from that, this classy-looking device has two Ethernet ports with a Gigabit speed capacity to access faster wired connections.

Speeds & Performance

SB8200 with 32 x 8 channel bonding and the 3.1 claims to support plans up to 1000 Mbps. Over my throughput test paired with the respective Gig plan and TP-Link Archer AX90 router, the overall results were impressive.

With my test device in close proximity (30 feet from the router), the respective download and upload speeds averaged 749 Mbps and 41 Mbps.

ARRIS SB8200 Speed Test

Meanwhile, the far-distance test (60 feet) measured respective speeds of 364 Mbps and 19 Mbps.

I was delighted to see the latency problems that plagued the previous generation of Arris modems were now gone, as the typical Intel Puma chipset was replaced with a Broadcom one. Besides, there are wide 4 x 4 OFDM channels for seamless data transmission.

Ports & Design

Its two Ethernet ports let you establish wired connections. With a maximum speed of 967 Mbps for downloads, you can engage in any bandwidth-hogging tasks like gaming, streaming, video conferencing, and others.

Design-wise, ARRIS doesn’t change much from its previous models, so much so you can hardly tell a difference. It's quite small and lightweight. Further, it takes an upright structure with rubber pads on its four feet, adding to the stability.

In the front, there are four indicator lights that indicate the connectivity.

Conclusion

If you’re in the market for a good Optimum-approved ARRIS modem that promises top speeds and a top-notch processing setup, SB8200 is the way to go. Although there aren’t any multi-gig ports, the available Ethernet ports pave the way for faster connections.

For a more closer look, check out the full review.

Pros

    • DOCSIS 3.1 + 32 x 8 channels
    • A handful of status lights
    • Stable speeds & performance
    • Reasonable pricing
    • Easy to install and configure
    • Excellent processing setup

Cons

    • No multi-gig ports

5. Best from Netgear: Netgear CM1100

Netgear CM1100
  • Supported Plans: Up to 1 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 2 x Gig Ethernet
  • Modem/Router Combo: No

Netgear CM1100, for starters, is one of the most reliable 3.1 modems in the networking space. Be it your insistence on using multi-gig speeds or a device that blends well with your interior decor, CM1100 dons several hats at once.

Speeds & Performance

Similar to my previous recommendations, CM1100 instills a DOCSIS 3.1 with 32 x 8 channels to support high-speed plans. To gauge its performance, I got the same setup used in my previous pick, and my overall experience was great.

Netgear CM1100 Speed Test

The close proximity test yields up to 716 Mbps download and 35 Mbps upload speeds, while respective values for the distance test stood at around 189 Mbps and 17 Mbps. That’s great for most tasks, be it gaming, streaming, video conferencing, or others. The numbers, however, might change if you pair a high-end router.

Ports & Design

The CM1100 sports two Gig Ethernet ports that let you access lag-free wired speeds. And the link aggregation support on the two adds an icing on the cake, so you can connect two IPs and reach speeds up to 2 Gbps.

Moving on, the device assumes a sleek factor. The feathery device is well-ventilated to minimize overheating, and with multiple indicators in the front, tracking network conditions is simple.

Conclusion

Overall, the Netgear CM1100, with the performance it delivers, can be deemed as one of the most reliable options. But setting it up can be a pain, especially if you aren’t accustomed to these devices. Here's its full review to learn more about the device.

Pros

    • Netgear's reliability
    • Great speeds
    • Well-ventilated form factor
    • Support for Link Aggregation
    • No packet loss found
    • Multiple status lights

Cons

    • Setup can be a pain

6. Best Budget Combo: ARRIS SURFboard G34

ARRIS SURFboard G34
  • Supported Plans: Up to 1 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 4 x Gig Ethernet
  • Modem/Router Combo: Yes

Next on my list is another modem-router combo that builds in a perfect combination of features, affordability, and performance. It almost has everything one might seek, be it DOCSIS 3.1, WiFi 6 tech, a decent throughput capacity, and a range to deliver a performance much better than its predecessor.

Speeds & Performance

ARRIS G34 with DOCSIS 3.1 and Wi-Fi 6 standard has a maximum stipulated throughput capacity of 3000 Mbps, with respective speeds on its 5 GHz and 2.4 GHz bands is 2401 Mbps and 574 Mbps.

So I expected crackers when paired with the Optimum 1 Gbps plan, and almost similar translated in reality.

In my near-band test, the device managed respective download and upload speeds of 709 Mbps and 35 Mbps, which translates to 206 Mbps and 18 Mbps at far distances.

ARRIS G34 Speed Test

Such speeds are viable for HD video streaming on 4-5 devices at once, but inconsistency was an issue. In an hour, the streams lagged on multiple occasions, which can be a potential limitation.

Nevertheless, the near-band performance was excellent as I could play games, stream 4K movies, attend Zoom calls, and others without any issues.

Other than that, its decent set of antennas encased inside transmits signals as far as 2,200 Sq Ft, making it suitable for any mid-sized apartment or household.

Ports & Design

The 2-in-1 device has four high-gain LAN ports, which lets you experience speeds up to 965 Mbps, suitable for any high-speed multimedia connections over cable.

Featuring a matt-black finish and hardened plastic as the underlying material, the Arris G34 looks great and blends well with any interior decor. In the front, it boasts an innovative LED setup for easy understanding.

Conclusion

If you're in for a good budget modem router for your Optimum network, the Arris G34 proves to be a valuable asset. With impressive speeds, above-average range, and efficient device management, it is well-suited for a variety of setups, whether in residential or commercial environments.

But lesser speeds and flexibility than separate devices are the reason combo device is ranked in the penultimate spot. Check out the full review.

Pros

    • DOCSIS 3.1 + Wi-Fi 6
    • Reliable processing setup
    • Excellent throughput
    • Great WiFi range
    • Clean design

Cons

    • Speeds drop at a distance

7. Cheapest Option: Hitron CODA

Hitron CODA
  • Supported Plans: Up to 1 Gbps
  • DOCSIS Protocol: 3.1
  • Downstream Upstream Channels: 32 x 8
  • Ports: 2 x Gig Ethernet
  • Modem/Router Combo: No

Last but not least, presenting you with a budget-friendly yet reliable option. Coming just at around $100, it includes a DOCSIS 3.1 tech, decent port setup, and in turn, performance better than most contenders in this price bracket.

Speeds & Performance

The maximum speed it can support is 1 Gbps, so I paired my ASUS RT-AX86U Pro router and measured the speeds on my Dell XPS laptop. It's backward compatible with DOCSIS 3.0, so it's also suitable for Optimum 500 Mbps plan.

The connection was there the whole time, and it didn’t require any reset or restart during my weeks of testing. In my 20-foot test, the device recorded a maximum download speed of 674 Mbps and an upload speed of 29 Mbps.

Meanwhile, the respective speeds maxed out at 132 Mbps and 10 Mbps, respectively, for downloads and uploads in my 40-foot test.

Distance speeds aren’t great, but you can stream any 4K movies or play any online games without any lags when up close to the router.

Ports & Design

There are two Ethernet ports on its rear panel with a speed cap of 1 Gbps. Connect your router or other smart devices to access faster speeds.

Personally, I liked what the manufacturer has done with the design of Hitron CODA. It’s simple and a horizontal build takes a bit more of your table space compared to my previous picks.

On the top, there’s ample ventilation to minimize overheating, but it turned hot after using it for an hour and potentially slowed down the speeds. In the front, there’s a typical LED indicator setup.

Conclusion

Hitron Coda offers the perfect balance between price and performance. With impressive speeds and reliable hardware, it efficiently handles various tasks for both business and home use, ensuring a seamless experience without delays or disruptions.

But Hitron being a lesser-known manufacturer for moems space is why it ranked at the bottom.

Pros

    • Latest networking traits
    • Decent internet speeds
    • Powerful hardware
    • Clean design
    • Easy to set up

Cons

    • Lesser known brand

Complete List of Optimum Approved Modems

Model NameDOCSIS TechnologyChannel
Bonding
Suitable PlanRouter Modem ComboVoice
Compatibility
Bad Chipset
ARRIS G343.132 x 81 GigNo
ARRIS G363.132 x 81 GigNo
ARRIS S333.132 x 81 GigNo
ARRIS T253.132 x 81 GigYes
ARRIS CM8200A3.132 x 81 GigNo
ARRIS SB61413. 08 x 4300 MbpsNo
ARRIS SB61803. 08 x 4300 MbpsNo
ARRIS SB61823. 08 x 4300 MbpsNo
ARRIS SB61833. 016 x 4300 MbpsNo
ARRIS SB61903. 032 x 8500 MbpsYes
ARRIS SB82003.132 x 81 GigNo
ARRIS SBG103. 016 x 4300 MbpsYes
ARRIS SBG64003. 08 x 4300 MbpsNo
ARRIS SBG65803. 08 x 4300 MbpsNo
ARRIS SBG6700-AC3. 08 x 4300 MbpsNo
ARRIS SBG6782-AC3. 08 x 4500 MbpsNo
ARRIS SBG6900-AC3. 016 x 4300 MbpsNo
ARRIS SBG6950AC23. 016 x 4500 MbpsYes
ARRIS SBG7400AC23. 024 x 8500 MbpsYes
ARRIS SBG7580-AC3. 032 x 8500 MbpsYes
ARRIS SBG7600AC23. 032 x 8500 MbpsYes
ARRIS SBG83003.132 x 81 GigYes
ARRIS TM1602G3. 024 x 8300 MbpsNo
ARRIS TM34023.132 x 81 GigYes
ASUS CM-163. 016 x 4300 MbpsNo
ASUS CM-323. 032 x 8500 MbpsYes
Hitron CODA3.132 x 81 GigNo
Hitron-Zyxel CDA-303603. 08 x 4100 MbpsNo
Linksys CG75003. 024 x 81 GigYes
Linksys CM30083. 08 x 4300 MbpsNo
Linksys CM30163. 016 x 4300 MbpsYes
Linksys CM30243. 024 x 8500 MbpsYes
Motorola MB72203. 08 x 4300 MbpsNo
Motorola MB74203. 016 x 4300 MbpsNo
Motorola MB76213. 024 x 8500 MbpsNo
Motorola MB86003.132 x 81 GigNo
Motorola MB86113.132 x 81 GigNo
Motorola MG73103. 08 x 4300 MbpsNo
Motorola MG73153. 08 x 4300 MbpsNo
Motorola MG75403. 016 x 4300 MbpsNo
Motorola MG75503. 016 x 4300 MbpsNo
Motorola MG77003. 024 x 8500 MbpsNo
Motorola MG87023.132 x 81 GigNo
Motorola MG87253.132 x 81 GigNo
NETGEAR C3000-100NAS3. 08 x 4300 MbpsNo
NETGEAR C3000v23. 08 x 4300 MbpsNo
NETGEAR C3700-100NAS3. 08 x 4500 MbpsNo
NETGEAR C3700v23. 08 x 4300 MbpsNo
NETGEAR C62203. 08 x 4300 MbpsNo
NETGEAR C62303. 016 x 4300 MbpsNo
NETGEAR C62503. 016 x 4300 MbpsNo
NETGEAR C63003. 016 x 4300 MbpsYes
NETGEAR C6300v23. 016 x 4300 MbpsYes
NETGEAR C6300BD3. 08 x 4300 MbpsYes
NETGEAR C69003. 024 x 8500 MbpsNo
NETGEAR C70003. 024 x 8500 MbpsNo
NETGEAR C7000v23. 024 x 8500 MbpsNo
NETGEAR C75003. 024 x 8500 MbpsNo
NETGEAR C78003.132 x 81 GigNo
NETGEAR CG3000D3. 08 x 4300 MbpsNo
NETGEAR CG3000Dv2 N4503. 08 x 4300 MbpsNo
NETGEAR CG4500BD3. 08 x 4300 MbpsNo
NETGEAR CM4003. 08 x 4300 MbpsNo
NETGEAR CM5003. 016 x 4300 MbpsNo
NETGEAR CM6003. 024 x 8500 MbpsNo
NETGEAR CM7003. 032 x 8500 MbpsYes
NETGEAR CM10003.132 x 81 GbpsNo
NETGEAR CM1000v23.132 x 81 GbpsNo
NETGEAR CM11003.132 x 81 GbpsNo
NETGEAR CM12003.132 x 82 GbpsNo
NETGEAR CM20003.132 x 85 GbpsNo
NETGEAR CM25003.132 x 81 GbpsNo
NETGEAR CM30003.132 x 81 GbpsNo
NETGEAR CAX30S3.132 x 82 GbpsNo
NETGEAR CAX803.132 x 86 GbpsNo
NETGEAR CBR403. 032 x 8500 MbpsYes
NETGEAR CBR7503.132 x 81 GbpsNo
TP-Link ARCHER CR5003. 016 x 4300 MbpsNo
TP-Link ARCHER CR7003. 016 x 4300 MbpsNo
TP-Link CR19003. 024 x 8500 MbpsNo
TP-Link TC-76103. 08 x 4300 MbpsNo
TP-Link TC-76203. 016 x 4300 MbpsNo
TP-Link TC76503. 024 x 8500 MbpsNo
TP-Link TC-W79603. 08 x 4500 MbpsNo

Modem Buying Checklist

As you've gone through the list, choosing an ideal cable modem for your Optimum connection can still be difficult, especially if you're a networking novice. Fret not. Here's a complete checklist to help you make an informed buying decision:

  • The modem you choose must be compatible with your subscribed internet plan since not all devices work with every plan due to limitations.
  • Prefer the latest networking traits like DOCSIS 3.1 and 32 x 8 channel bonding. They make a huge difference in the operation of a cable modem.
  • Next, check the port setup. If you need extended wired connectivity, choose a device with 4 gigabit ethernet slots.
  • If you're interested in a modem router combo, try getting one with the latest wireless standards such as Wi-Fi 6, Dual or Tri-Band frequency. Also, ensure it has enough WiFi range to cover your space.
  • You might not give much thought to the hardware (internals) but it plays an important role. Look for a multi-core processor and 256 MB of RAM for smooth performance.
  • Lastly, make sure the modem's design includes proper heat vents for heat dissipation and multiple status light indicators for easy use.

Note: It's not just the cable modem that affects performance, but also the paired wireless router. Check out my top picks for Optimum.

Frequently Asked Questions

Can I use my own modem with Optimum?

Yes, you can. In fact, buying your own equipment is more beneficial than renting. On average, you will save around $120 within the first year of your purchase, which is a cost you'll pay for a decent third-party modem. So, without a doubt, I would recommend you buy one.

What modems are compliant with Optimum Online?

This article holds the answer to your question. I tested 21 options and have compiled a list of the 7 best ones for you. These are certified for use with Optimum and offer great wireless connectivity at an affordable price.

Do I need any additional ports if I do not have a PC?

If you do not have a gaming console or a PC right now, I recommend getting a modem with at least 2 Ethernet ports because you never know what the future holds. Therefore, it is smart to buy a future-proof product.

Verdict

I hope my reviewed Optimum modems helped you make a viable decision. If you're still confused about which one to get, here is what I'd suggest for specific requirements:

  • If you want the best possible modem, get the Motorola MB8611. You can use it with any service package from Optimum, and it works flawlessly.
  • If you prefer an easy-to-use modem/router combo over separate devices, then the Netgear CAX30S is a great choice.
  • If you're someone who doesn't indulge in data-intensive activities, the affordable Hitron CODA is a perfect option for you.