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- Best overall: ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router
- Best budget: ARRIS SURFboard G34 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router
- Best premium: NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router
- Best for a flexible multi-gigabit setup: ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem
- A standalone cable modem pairs with a separate router, giving you more flexibility to upgrade Wi-Fi and manage your home network.
- A modem router combo puts the modem and Wi-Fi router in one device, saving space and simplifying setup.
- DOCSIS 3.1 models such as the ARRIS SURFboard S33 and NETGEAR Nighthawk CAX80 suit a range of high-speed cable plans.
- Check your internet provider’s compatibility list, plan speed and home coverage needs before choosing a device.
Choosing between a cable modem and a modem router combo comes down to flexibility versus convenience. A standalone modem connects your cable service to a separate Wi-Fi router. A combo combines both jobs in one box, which means fewer devices, cables and setup steps. For Black Friday 2026, I researched and compared specs, reviews and owner feedback to identify seven DOCSIS 3.1 options for different homes and broadband needs.
The best choice depends on your internet provider, plan speed and Wi-Fi needs—not just the device’s headline specifications. Standalone modems suit shoppers who already own a router or want to upgrade Wi-Fi separately. Combos are a Best bet for simpler setups and homes short on shelf space. Confirm that your provider supports the exact model before buying, then compare the Ethernet ports, wireless standard and coverage features.
How We Picked
- Compared DOCSIS 3.1 support, Ethernet ports and advertised speed capabilities for cable broadband plans.
- Reviewed manufacturer specifications and owner feedback for setup needs, network features and day-to-day convenience.
- Included standalone modems and modem router combos so shoppers can compare both device types.
- Considered Wi-Fi generation, number of wired connections and multi-gigabit port availability.
- Prioritized devices with clear use cases, while advising shoppers to verify compatibility with their own internet provider.
Comparison Table
| Product | Best for | DOCSIS | Wi-Fi | Ethernet ports |
|---|---|---|---|---|
| Motorola MB8611 DOCSIS 3.1 Cable Modem | Standalone modem buyers | 3.1 | None | 1 x 2.5Gbps |
| ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem | Flexible multi-gigabit setup | 3.1 | None | 1 x 2.5Gbps, 1 x 1Gbps |
| NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem | Separate router with a multi-gigabit port | 3.1 | None | 1 x 2.5Gbps, 1 x 1Gbps |
| Motorola MG8725 DOCSIS 3.1 Wi-Fi 6 Cable Modem + Router | AX6000-class combo | 3.1 | Wi-Fi 6, AX6000 | 4 |
| ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router | Wi-Fi 6 combo with multi-gigabit port | 3.1 | Wi-Fi 6, AX3000 | 4, including 1 x 2.5Gbps |
| NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router | Premium all-in-one networking | 3.1 | WiFi 6, AX6000 | 5, including 1 x 2.5Gbps |
| ARRIS SURFboard G34 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router | Straightforward Wi-Fi 6 combo | 3.1 | Wi-Fi 6, AX3000 | 4 x 1Gbps |
Best Picks Reviewed
#1
Motorola MB8611 DOCSIS 3.1 Cable Modem
The Motorola MB8611 DOCSIS 3.1 Cable Modem is the best standalone modem for shoppers who want a simple wired connection and a 2.5Gbps Ethernet port.
Best for: Standalone modem buyers with a separate router
- DOCSIS
- 3.1
- Ethernet port
- 1 x 2.5Gbps
- Device type
- Cable modem
- A single multi-gigabit Ethernet port supports a fast router connection.
- Separates modem and Wi-Fi hardware for easier router upgrades.
- DOCSIS 3.1 suits many current high-speed cable plans.
- Requires a separate router for Wi-Fi.
Is the Motorola MB8611 DOCSIS 3.1 Cable Modem worth buying on Black Friday 2026?
The Motorola MB8611 DOCSIS 3.1 Cable Modem is a strong Black Friday 2026 choice for households that already own a router. The Motorola MB8611 DOCSIS 3.1 Cable Modem's 2.5Gbps Ethernet port supports a multi-gigabit connection between the modem and router.
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#2
ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem
The ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem is the best flexible modem for households that want two Ethernet connections, including a 2.5Gbps port.
Best for: Multi-gigabit plans and flexible wired connections
- DOCSIS
- 3.1
- Ethernet ports
- 1 x 2.5Gbps, 1 x 1Gbps
- Device type
- Cable modem
- Includes both 2.5Gbps and 1Gbps Ethernet ports.
- Lets you choose a separate router for Wi-Fi.
- Compact standalone design keeps the modem setup straightforward.
- Does not provide Wi-Fi on its own.
Is the ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem worth buying on Black Friday 2026?
The ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem is worth considering for a separate-router setup. The ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem's 2.5Gbps and 1Gbps Ethernet ports offer flexible wired connections, while DOCSIS 3.1 supports compatible cable broadband service.
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#3
NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem
The NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem is the best standalone pick for multi-gigabit households that want a 2.5Gbps port and a separate router.
Best for: Multi-gigabit cable service with a separate router
- DOCSIS
- 3.1
- Ethernet ports
- 1 x 2.5Gbps, 1 x 1Gbps
- Device type
- Cable modem
- Offers a 2.5Gbps Ethernet port for a compatible router.
- Keeps Wi-Fi hardware separate and independently upgradeable.
- Includes an additional 1Gbps Ethernet port.
- A separate Wi-Fi router is required.
Is the NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem worth buying on Black Friday 2026?
The NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem is a good fit for cable customers who want a separate router. The NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem's 2.5Gbps Ethernet port and DOCSIS 3.1 support make it a useful foundation for a compatible multi-gigabit setup.
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#4
Motorola MG8725 DOCSIS 3.1 Wi-Fi 6 Cable Modem + Router
The Motorola MG8725 DOCSIS 3.1 Wi-Fi 6 Cable Modem + Router is the best combo for shoppers seeking Wi-Fi 6 and AX6000-class wireless in one device.
Best for: A feature-rich all-in-one home network
- DOCSIS
- 3.1
- Wi-Fi
- Wi-Fi 6, AX6000
- Ethernet ports
- 4
- Combines the cable modem and Wi-Fi router.
- Wi-Fi 6 supports modern home devices.
- Four Ethernet ports provide wired connection options.
- Replacing the modem or router means replacing the combo device.
Is the Motorola MG8725 DOCSIS 3.1 Wi-Fi 6 Cable Modem + Router worth buying on Black Friday 2026?
The Motorola MG8725 DOCSIS 3.1 Wi-Fi 6 Cable Modem + Router is a strong all-in-one option for households seeking fewer devices. Wi-Fi 6, AX6000-class wireless and four Ethernet ports give the combo useful wired and wireless features.
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#5 · Top pick
ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router
The ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router is the best combo for shoppers who want AX3000-class Wi-Fi and a 2.5Gbps Ethernet port.
Best for: Wi-Fi 6 convenience with a multi-gigabit port
- DOCSIS
- 3.1
- Wi-Fi
- Wi-Fi 6, AX3000
- Ethernet ports
- 4, including 1 x 2.5Gbps
- Combines modem and router functions in one device.
- Includes a 2.5Gbps Ethernet port.
- Wi-Fi 6 and four Ethernet ports support mixed wireless and wired homes.
- A combo offers less flexibility for replacing the modem or router separately.
Is the ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router worth buying on Black Friday 2026?
The ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router is worth a look for shoppers who want a single device with Wi-Fi 6. AX3000-class wireless and a 2.5Gbps Ethernet port make it a versatile combo for compatible plans.
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#6
NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router
The NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router is the best premium combo for shoppers who want AX6000-class Wi-Fi and a 2.5Gbps port.
Best for: Premium all-in-one networking
- DOCSIS
- 3.1
- Wi-Fi
- WiFi 6, AX6000
- Ethernet ports
- 5, including 1 x 2.5Gbps
- Combines DOCSIS 3.1 modem and Wi-Fi 6 router functions.
- Provides a 2.5Gbps Ethernet port and four additional wired ports.
- AX6000-class wireless suits homes with many connected devices.
- A separate modem and router give more upgrade flexibility.
Is the NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router worth buying on Black Friday 2026?
The NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router is a premium all-in-one pick for homes that want robust wired and wireless options. AX6000-class Wi-Fi, five Ethernet ports and a 2.5Gbps port headline its feature set.
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#7
ARRIS SURFboard G34 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router
The ARRIS SURFboard G34 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router is the best value-focused combo for shoppers who want Wi-Fi 6 and four Ethernet ports.
Best for: Straightforward Wi-Fi 6 combo setups
- DOCSIS
- 3.1
- Wi-Fi
- Wi-Fi 6, AX3000
- Ethernet ports
- 4 x 1Gbps
- Modem and Wi-Fi router functions share one device.
- Wi-Fi 6 supports newer phones, computers and smart home devices.
- Four gigabit Ethernet ports support wired equipment.
- No 2.5Gbps Ethernet port.
Is the ARRIS SURFboard G34 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router worth buying on Black Friday 2026?
The ARRIS SURFboard G34 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router is a practical choice for shoppers who want a simpler Wi-Fi 6 setup. Four 1Gbps Ethernet ports support wired devices, while DOCSIS 3.1 connects to compatible cable service.
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What is the difference between a cable modem and a modem router combo?
A standalone cable modem connects one cable internet service to a separate router, while a modem router combo combines both functions in 1 device. The modem handles the connection to your provider; the router distributes that connection to Wi-Fi and wired devices.
A separate setup gives you room to upgrade the router without replacing the modem, or replace the modem while keeping your Wi-Fi network. The Motorola MB8611 DOCSIS 3.1 Cable Modem and ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem suit that approach. A combo such as the ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router needs less shelf space and fewer cables. Choose based on how much you value convenience, choice and independent upgrades.
Is a modem router combo better than a separate modem and router?
A modem router combo is the simpler choice for shoppers who want 1 device, while a separate modem and router offer more upgrade flexibility. The best arrangement depends on how you use your home network and whether you already own compatible equipment.
Combos such as the NETGEAR Nighthawk CAX80 DOCSIS 3.1 WiFi 6 Cable Modem Router put Wi-Fi 6 and cable connectivity together. The trade-off is that replacing one part of the network usually means replacing the whole unit. With a standalone modem such as the NETGEAR CM3000 DOCSIS 3.1 Multi-Gigabit Cable Modem, shoppers choose a router separately and keep modem and Wi-Fi upgrades independent. For a quick setup, a combo is an Easy recommendation; for customization, choose separate devices.
What should I check before buying a cable modem for Black Friday 2026?
Check 3 details before buying a cable modem for Black Friday 2026: provider compatibility, plan speed and Ethernet port requirements. A DOCSIS 3.1 label alone does not guarantee that every provider supports a specific model or that every plan uses its full capability.
Search your internet provider’s compatibility list using the exact model name, then compare the listed plan support with your own service. Look at the Ethernet port between the modem and router, too: a 2.5Gbps port appears on devices such as the ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem. For a combo, also compare Wi-Fi generation, port count and where the device will sit. A strong wireless spec does not replace sensible placement or a plan that supports the speeds you want.
Do I need a separate router with a cable modem?
A standalone cable modem needs 1 separate router for Wi-Fi, while a modem router combo already includes that function. A modem on its own provides the cable connection but does not create a home Wi-Fi network.
The Motorola MB8611 DOCSIS 3.1 Cable Modem is a match for shoppers who own a router or plan to choose one separately. Pairing a modem with a router allows you to select wireless features independently, but it means managing two devices and their connections. The Motorola MG8725 DOCSIS 3.1 Wi-Fi 6 Cable Modem + Router combines modem and router roles, which can simplify setup. Confirm the combo’s provider compatibility before purchase, especially if you plan to replace equipment supplied by your internet company.
Which cable modem option is best for a multi-gigabit home?
A multi-gigabit home needs a compatible internet plan and a 2.5Gbps Ethernet connection at the right point in its network. The ARRIS SURFboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem offers that port in a standalone modem, while the ARRIS SURFboard G36 DOCSIS 3.1 Wi-Fi 6 Cable Modem Router includes one in a combo.
The rest of the equipment matters, too. A router, computer or network switch with only 1Gbps ports limits the wired connection through that link, and Wi-Fi performance depends on client devices and home conditions. Compare the provider’s supported plan speeds with the modem’s specifications and the router’s ports before choosing. Shoppers who already own a high-capability router can start with a standalone modem; shoppers who want fewer boxes can look at a combo with an appropriate multi-gigabit port.
Buying Guide
Check provider compatibility
Look up the exact brand and model on your cable provider’s approved-device list. Verify support for your current plan and any voice service. Provider support takes priority over a broad speed claim on the product page.
Match the modem to your internet plan
Compare DOCSIS generation and the provider’s supported plan speeds. A modem’s advertised capability does not change the speed tier attached to your account. Choose a device that fits your service and planned upgrades.
Choose a standalone modem or combo
Pick a standalone modem if you own a router or want separate upgrade paths. Choose a combo to reduce device count, cables and setup steps. Confirm the combo has the Wi-Fi features and wired ports your home needs.
Compare Ethernet ports and Wi-Fi
Count the wired devices you need to connect and check whether a 2.5Gbps port matters for your plan. For combos, compare Wi-Fi generation and coverage needs. The location and layout of your home affect wireless performance.
Review setup and ownership details
Check whether activation requires contacting your provider and whether your chosen device supports provider-specific features. Review warranty, return terms and included cables. Keep your existing router details handy when moving to a standalone modem.
FAQ
Is a cable modem the same as a router?
No. A cable modem connects your home to cable internet service, while a router shares that connection with Wi-Fi and wired devices. A modem router combo includes both functions in one device; a standalone modem needs a separate router for home networking.
Does a modem router combo need a separate router?
No. A modem router combo includes a router, so it can provide Wi-Fi and wired network connections without a second router. Check the device’s Wi-Fi features, Ethernet ports and provider compatibility before choosing a combo for your home.
Is DOCSIS 3.1 good for cable internet?
DOCSIS 3.1 is a current cable modem standard supported by many high-speed cable services. Provider support and plan compatibility still matter: check your internet provider’s approved-device list and confirm the exact modem supports your plan.
Can I use my own router with a cable modem?
Yes. A standalone cable modem such as the Motorola MB8611 DOCSIS 3.1 Cable Modem connects to a separate router through Ethernet. Confirm that the modem is provider-approved and that the router’s port and wireless features meet your needs.
Which is better for Black Friday 2026: a modem or a modem router combo?
A standalone modem is better for shoppers who want a separate router and independent upgrades. A modem router combo is better for shoppers who prefer one device and simpler setup. Compare compatibility, plan speed and features before making your Black Friday 2026 choice.