Best DOCSIS 3.1 Modems

Are you looking for the best DOCSIS 3.1 modems to upgrade your internet setup?
I can help you choose top-performing options that deliver fast, reliable speeds for a smooth online experience.

Upgrading your internet? A DOCSIS 3.1 modem is key. It delivers super-fast speeds for streaming, gaming, and more. We’ve picked the best models to save you time and money.

These modems work with top providers like Xfinity, Cox, and Spectrum. They’re easy to set up and built to last. Ready to find the perfect fit? Let’s dive in!

List of Top 10 DOCSIS 3.1 Modems

Title	Best For	Price
ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem \| 2 -1Gbps Ethernet Ports \| Works with Xfinity, Cox, Spectrum \| For Cable Internet Plans up to 2Gbps \| Modem Only, Router Required	This modem is perfect for anyone who wants fast, smooth, and steady internet at home. It’s great for people who stream, play games, or work online and want simple setup and strong speed.	View on Amazon (paid link)
Hitron CODA DOCSIS 3.1 – Cable Internet ONLY (NOT Compatible with Fiber/DSL) \| Up to 1 Gbps Cable Modem \| Requires WiFi Router \| Xfinity, Spectrum, Cox Certified	This modem is perfect for people who want simple, fast, and reliable cable internet without extra features. It’s great for anyone who already has a WiFi router and wants a clean, easy setup.	View on Amazon (paid link)
Hitron CODA56 DOCSIS 3.1 Cable Modem ONLY (NOT Fiber) \| 2.5 Gbps \| NO WiFi/Voice/Router \| Single Ethernet Port \| Xfinity/Spectrum/Cox Compatible \| Requires Separate WiFi Router	This modem is perfect for people who want fast cable internet and already have their own WiFi router. It’s great for anyone who needs a simple, strong, and easy way to get multi‑gig speed without extra features they don’t use.	View on Amazon (paid link)
NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router – AX2700 2.7 Gbps – Compatible with Xfinity, Spectrum, Cox, and More – Gigabit Wireless Internet	The NETGEAR Nighthawk Modem Router Combo (CAX30) is perfect for families and small offices who need fast, reliable internet. It’s great for streaming, gaming, and connecting multiple devices at once.	View on Amazon (paid link)
Motorola B12 – Advanced Compact Cable Modem \| Pairs with Any WiFi Router \| Supports Comcast Xfinity, Cox, Spectrum \| 2500 Mbps Max \| DOCSIS 3.1 \| 2.5 Gbps Port \| Nex Gen MB8611	This Motorola B12 modem is perfect for anyone who wants super-fast internet at home. It’s great for streaming, gaming, and video calls, and it saves you money by avoiding rental fees.	View on Amazon (paid link)
Netgear Gigabit Cable Modem (32×8) DOCSIS 3.1 \| for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)	This Netgear Gigabit Cable Modem is perfect for anyone with cable internet from Xfinity, Spectrum, or Cox. It’s great for saving money on monthly rental fees and supports super-fast speeds up to 1Gbps.	View on Amazon (paid link)
NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major ISP Providers Including Xfinity, Spectrum, Cox, for Cable Plans Up to 1 Gbps,Black	This modem is perfect for anyone who wants fast, smooth internet and uses a major cable provider. It fits people who want a simple setup and a strong connection for all their devices.	View on Amazon (paid link)
ARRIS (SB8200-RB) – Cable Modem – Fast DOCSIS 3.1 32×8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more \| 1 Gbps Max Internet Speed, 4 OFDM Channels – Renewed	This modem is perfect for anyone who wants fast, simple, and steady internet without extra setup. It’s great for people who use Cox, Spectrum, or Xfinity and want smooth speed up to 1 Gbps.	View on Amazon (paid link)
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem \| 2.5 Gbps Max Internet Speeds \| Certified with Xfinity, Charter Spectrum, Cox \| 2.5 Gbps Ethernet Cable Modem ONLY \| Requires Separate WiFi Router	This Hitron CODA56 Modem is perfect for anyone with cable internet who wants super-fast speeds up to 2.5 Gbps. It’s great for gamers, streamers, and heavy internet users who already have a separate WiFi router and want to save on monthly rental fees.	View on Amazon (paid link)
NETGEAR Nighthawk DOCSIS 3.1 Mid/High-Split Modem (CM3000-1AZNAS) – Approved for Today’s Fastest Speeds – Works with All Providers, Incl. Xfinity, Spectrum, Cox – Plans up to 2.5Gbps	This NETGEAR Nighthawk Modem is perfect for anyone who wants super-fast internet speeds for gaming, streaming, or working from home. It’s great for families or busy households that need reliable, high-speed connections.	View on Amazon (paid link)

Detailed Reviews

This guide shows the top DOCSIS 3.1 modems chosen with care. Each pick is tested for speed, stability, and real value. You get clear advice you can trust. You will want to read more to find the best modem for your home.

1. ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 -1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2Gbps | Modem Only, Router Required

ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 -1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2Gbps | Modem Only, Router Required

The ARRIS SURFboard SB8200 is a DOCSIS 3.1 cable modem. It supports speeds up to 2 Gbps. Perfect for streaming, gaming, and downloads.

It has two 1 Gigabit Ethernet ports. Works with Xfinity, Cox, and Spectrum. Save money by owning your modem.

Compact design fits any space. Easy setup with your cable provider. Router required for Wi-Fi.

Pros	Cons
Fast speeds for all your home needs. Easy setup works in just a few steps. Save cash on your monthly cable bill. Top tech for smooth and lag-free play. Small size fits well in any room.	No built-in Wi-Fi – Router required for wireless connection. Not for fiber, DSL, or satellite – Limited provider compatibility. Only two Ethernet ports – May not suit larger networks.

Perfect For:

This modem is perfect for anyone who wants fast, smooth, and steady internet at home. It’s great for people who stream, play games, or work online and want simple setup and strong speed.

Ready to Purchase?

View Price on Amazon (paid link)

2. Hitron CODA DOCSIS 3.1 – Cable Internet ONLY (NOT Compatible with Fiber/DSL) | Up to 1 Gbps Cable Modem | Requires WiFi Router | Xfinity, Spectrum, Cox Certified

Hitron CODA DOCSIS 3.1 - Cable Internet ONLY (NOT Compatible with Fiber/DSL) | Up to 1 Gbps Cable Modem | Requires WiFi Router | Xfinity, Spectrum, Cox Certified

The Hitron CODA DOCSIS 3.1 modem works only with cable internet. It will not work with fiber, DSL, satellite, or 5G.

It needs a separate Wi‑Fi router to share the connection. The modem gives you one Ethernet port for a single device.

Save on rental fees. Fast up to 1 Gbps. Easy four‑step setup.

Pros	Cons
Fast DOCSIS 3.1 speed up to 1 Gbps Easy setup with simple 4-step process Works with major cable providers Cuts modem rental costs Reliable brand with strong support	No WiFi or voice features, requires a separate router. Only works with cable internet, not fiber or DSL. Single Ethernet port, limits device connections without a router.

Perfect For:

This modem is perfect for people who want simple, fast, and reliable cable internet without extra features. It’s great for anyone who already has a WiFi router and wants a clean, easy setup.

Ready to Purchase?

View Price on Amazon (paid link)

3. Hitron CODA56 DOCSIS 3.1 Cable Modem ONLY (NOT Fiber) | 2.5 Gbps | NO WiFi/Voice/Router | Single Ethernet Port | Xfinity/Spectrum/Cox Compatible | Requires Separate WiFi Router

Hitron CODA56 DOCSIS 3.1 Cable Modem ONLY (NOT Fiber) | 2.5 Gbps | NO WiFi/Voice/Router | Single Ethernet Port | Xfinity/Spectrum/Cox Compatible | Requires Separate WiFi Router

The Hitron CODA56 is a DOCSIS 3.1 cable modem designed for high-speed internet. It works only with cable providers like Xfinity, Spectrum, and Cox.

This modem supports speeds up to 2.5 Gbps with a single Ethernet port. It does not include WiFi or phone service. You’ll need a separate WiFi router to create a wireless network.

It’s compatible with multi-gig plans and saves you monthly rental fees. Check with your ISP to ensure it works with your service. Hitron offers 7-day support and a warranty for peace of mind.

Pros	Cons
Fast multi‑gig speed for smooth online use Cuts monthly modem fees Simple DOCSIS 3.1 power for strong performance Works with top cable providers Easy setup with your own WiFi router	No WiFi or voice support – requires extra devices. Only works with cable internet – not for fiber. Single Ethernet port – limits connections.

Perfect For:

This modem is perfect for people who want fast cable internet and already have their own WiFi router. It’s great for anyone who needs a simple, strong, and easy way to get multi‑gig speed without extra features they don’t use.

Ready to Purchase?

View Price on Amazon (paid link)

4. NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router – AX2700 2.7 Gbps – Compatible with Xfinity, Spectrum, Cox, and More – Gigabit Wireless Internet

NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router - AX2700 2.7 Gbps - Compatible with Xfinity, Spectrum, Cox, and More - Gigabit Wireless Internet

Fast speed. Strong signal. Easy setup. This modem router gives you smooth WiFi. It keeps your devices online with no stress.

It works with major cable providers and covers a wide area. It delivers fast WiFi 6 for many devices.

It adds strong security tools and simple controls. It replaces your old modem and router with one clean unit.

Pros	Cons
Replaces modem and router, saving space and setup time. Covers 2,000 sq. ft. and 25 devices with WiFi 6. Compatible with major providers like Xfinity, Spectrum, and Cox. NETGEAR Armor offers enhanced online protection for peace of mind.	Not works with some internet providers Setup may feel hard for new users Can be pricey for tight budgets

Perfect For:

The NETGEAR Nighthawk Modem Router Combo (CAX30) is perfect for families and small offices who need fast, reliable internet. It’s great for streaming, gaming, and connecting multiple devices at once.

Ready to Purchase?

View Price on Amazon (paid link)

5. Motorola B12 – Advanced Compact Cable Modem | Pairs with Any WiFi Router | Supports Comcast Xfinity, Cox, Spectrum | 2500 Mbps Max | DOCSIS 3.1 | 2.5 Gbps Port | Nex Gen MB8611

Motorola B12 - Advanced Compact Cable Modem | Pairs with Any WiFi Router | Supports Comcast Xfinity, Cox, Spectrum | 2500 Mbps Max | DOCSIS 3.1 | 2.5 Gbps Port | Nex Gen MB8611

The Motorola B12 gives you fast, smooth internet. It runs on DOCSIS 3.1 for top speed. It keeps your home online with ease.

You get clear video and fast games. You get strong, steady speed.

The 2.5 Gbps port boosts your router. The modem cuts rental fees. The support team is ready to help.

Pros	Cons
Ultra-fast speeds up to 2500 Mbps for seamless streaming and gaming. Saves money by eliminating up to $168 yearly modem rental fees. Works with top ISPs like Comcast, Cox, and Spectrum for easy setup. Future-proof with DOCSIS 3.1 and 2.5 Gbps Ethernet port.	Needs setup with your own WiFi gear Not ideal for slow internet plans May require ISP approval steps

Perfect For:

This Motorola B12 modem is perfect for anyone who wants super-fast internet at home. It’s great for streaming, gaming, and video calls, and it saves you money by avoiding rental fees.

Ready to Purchase?

View Price on Amazon (paid link)

6. Netgear Gigabit Cable Modem (32×8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)

Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)

Experience fast internet speeds with the Netgear Gigabit Cable Modem. It works with major cable providers like Xfinity, Spectrum, and Cox.
Save money by replacing your rental modem. Keep your internet running smoothly with this reliable device.
Connect your WiFi router easily. Use the single Gigabit Ethernet port. Enjoy fast and stable connections.
Made for use in the US only. Compatible with many providers. Not for DSL or voice services.

Pros	Cons
Fast DOCSIS 3.1 for smooth home internet. Saves money on monthly modem rental fees. Works with major cable internet providers. One Ethernet port for easy router setup. Built for up to 1 Gbps speeds.	Not a match for many internet providers Only one port, so limited wired links Works in the US only, no global use

Perfect For:

This Netgear Gigabit Cable Modem is perfect for anyone with cable internet from Xfinity, Spectrum, or Cox. It’s great for saving money on monthly rental fees and supports super-fast speeds up to 1Gbps.

Ready to Purchase?

View Price on Amazon (paid link)

7. NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major ISP Providers Including Xfinity, Spectrum, Cox, for Cable Plans Up to 1 Gbps,Black

NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major ISP Providers Including Xfinity, Spectrum, Cox, for Cable Plans Up to 1 Gbps,Black

This modem is fast. It is simple to use. It works with top cable providers.
It gives you smooth speed. It keeps your home online with ease.

Setup is quick. You plug it in and go. It works with any WiFi router.

The port is strong. The build is solid. The use is easy.

Pros	Cons
Works with top cable internet providers Handles speeds up to 1Gbps Quick setup for fast use Easy link to any WiFi router Strong Gigabit Ethernet port	Not works with many non‑cable providers Only one Ethernet port Needs a separate WiFi router

Perfect For:

This modem is perfect for anyone who wants fast, smooth internet and uses a major cable provider. It fits people who want a simple setup and a strong connection for all their devices.

Ready to Purchase?

View Price on Amazon (paid link)

8. ARRIS (SB8200-RB) – Cable Modem – Fast DOCSIS 3.1 32×8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels – Renewed

ARRIS (SB8200-RB) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - Renewed

The ARRIS SB8200-RB is a fast cable modem that works with major U.S. providers like Cox, Spectrum, and Xfinity. It supports speeds up to 1 Gbps, making it great for high-speed internet plans.

This modem has two 1-Gigabit Ethernet ports for reliable connections. It uses DOCSIS 3.1 technology for better performance. No Wi-Fi included, so pair it with a router.

Pros	Cons
Fast DOCSIS 3.1 speed for smooth use Works with top cable internet providers Handles up to 1 Gbps plans Dual Gigabit ports for easy setup Strong channel support for steady service	No Wi‑Fi, needs a separate router Not compatible with many non‑cable providers Only two ports, limited wired expansion

Perfect For:

This modem is perfect for anyone who wants fast, simple, and steady internet without extra setup. It’s great for people who use Cox, Spectrum, or Xfinity and want smooth speed up to 1 Gbps.

Ready to Purchase?

View Price on Amazon (paid link)

9. Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 2.5 Gbps Ethernet Cable Modem ONLY | Requires Separate WiFi Router

Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 2.5 Gbps Ethernet Cable Modem ONLY | Requires Separate WiFi Router

This modem is built for pure speed. It gives you multi‑gig power for smooth streaming and fast online play.

You get 2.5 Gbps performance. You need a separate WiFi router. You must have cable internet service.

Pros	Cons
Fast 2.5 Gbps speed for smooth internet. Works with major cable providers. Low-lag design for gaming and streaming. Saves money by cutting modem rental fees. Easy to pair with your own router.	No WiFi inside the box. Needs a separate router to go wireless. Cable only; no fiber or DSL.

Perfect For:

This Hitron CODA56 Modem is perfect for anyone with cable internet who wants super-fast speeds up to 2.5 Gbps. It’s great for gamers, streamers, and heavy internet users who already have a separate WiFi router and want to save on monthly rental fees.

Ready to Purchase?

View Price on Amazon (paid link)

10. NETGEAR Nighthawk DOCSIS 3.1 Mid/High-Split Modem (CM3000-1AZNAS) – Approved for Today’s Fastest Speeds – Works with All Providers, Incl. Xfinity, Spectrum, Cox – Plans up to 2.5Gbps

NETGEAR Nighthawk DOCSIS 3.1 Mid/High-Split Modem (CM3000-1AZNAS) – Approved for Today's Fastest Speeds - Works with All Providers, Incl. Xfinity, Spectrum, Cox - Plans up to 2.5Gbps

This modem is fast. This modem is strong. This modem is ready.

It gives you 2.5Gbps speed with simple setup. It works with all major providers.

You get smooth streaming and quick uploads every day. It keeps your home ready for the future.

Pros	Cons
Blazing-fast speeds up to 2.5Gbps for smooth streaming and gaming. Future-proof tech ready for higher internet speeds tomorrow. Seamless multi-device use for gaming, video calls, and uploads. Works with all major U.S. providers, including Xfinity and Spectrum.	No built‑in WiFi – needs a separate router Only U.S. use – not compatible internationally Higher price than basic DOCSIS 3.0 modems

Perfect For:

This NETGEAR Nighthawk Modem is perfect for anyone who wants super-fast internet speeds for gaming, streaming, or working from home. It’s great for families or busy households that need reliable, high-speed connections.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Need faster internet? A DOCSIS 3.1 modem is your best bet. We’ve picked the top models to save you time and money.

Factors to Consider When Buying a DOCSIS 3.1 Modem:
– Speed: Choose a modem that matches your internet plan. Look for 2.5 Gbps or 1 Gbps options for smooth streaming and gaming.
– Compatibility: Ensure it works with your provider, like Xfinity, Cox, or Spectrum. Check before buying.
– Ports: Decide if you need multiple Ethernet ports or just one. More ports mean more devices can connect directly.
– WiFi Included: Some modems come with built-in WiFi, while others need a separate router. Pick what fits your setup.
– Setup: Look for easy setup options. Most modems offer simple steps to get online quickly.
– Cost: Buying your modem saves monthly rental fees. Compare prices to find the best deal.
– Size: Compact designs fit any space. Choose one that works for your home or office.
– Support: Check for warranty and customer support. Good support means peace of mind.

Ready to upgrade? Pick a modem that fits your needs and enjoy faster, smoother internet today!