20 Best Docsis 3.1 Modem Router Combo [2025]

Are you looking for the best docsis 3.1 modem router combo? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling docsis 3.1 modem router combo.

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1 Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power... Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power...
2 NETGEAR Nighthawk WiFi 6 Modem Router Combo (CAX30S) DOCSIS 3.1 Modem & Wireless Router, Compatible... NETGEAR Nighthawk WiFi 6 Modem Router Combo (CAX30S) DOCSIS 3.1 Modem & Wireless Router,...
3 ARRIS Surfboard SBG8300-RB DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity,... ARRIS Surfboard SBG8300-RB DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast...
4 Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast... Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for...
5 Netgear Nighthawk Cable Modem WiFi Router Combo (C7800) - Compatible with Cable Providers Including... Netgear Nighthawk Cable Modem WiFi Router Combo (C7800) - Compatible with Cable Providers...
6 ASUS AX6000 WiFi 6 Cable Modem Wireless Router Combo (CM-AX6000) - Dual Band, DOCSIS 3.1, Gigabit... ASUS AX6000 WiFi 6 Cable Modem Wireless Router Combo (CM-AX6000) - Dual Band, DOCSIS 3.1, Gigabit...
7 ARRIS - SURFboard DOCSIS 3.1 Cable Modem & Dual-Band Wi-Fi Router Black (Renewed) ARRIS - SURFboard DOCSIS 3.1 Cable Modem & Dual-Band Wi-Fi Router Black (Renewed)
8 ARRIS Surfboard DOCSIS 3.1 Modem and AX6600 WiFi 6 Mesh Router System Bundle ARRIS Surfboard DOCSIS 3.1 Modem and AX6600 WiFi 6 Mesh Router System Bundle
9 ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity, Cox,... ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity,...
10 ASUS Modem Router Combo - All-in-One DOCSIS 3.0 32x8 Cable Modem + Dual-Band Wireless AC2600 WIFI... ASUS Modem Router Combo - All-in-One DOCSIS 3.0 32x8 Cable Modem + Dual-Band Wireless AC2600 WIFI...
11 NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8x4 Download... NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8x4 Download...
12 Amazon eero mesh WiFi router Amazon eero mesh WiFi router
13 NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatible with Cable Providers Including... NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatible with Cable Providers Including...
14 NETGEAR Orbi Whole Home WiFi 6 System with DOCSIS 3.1 Built-in Cable Modem (CBK752) – Cable Modem... NETGEAR Orbi Whole Home WiFi 6 System with DOCSIS 3.1 Built-in Cable Modem (CBK752) – Cable...
15 ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black
16 Motorola MG8725 Multi-Gig Cable Modem + Built in WiFi 6 Router | Approved for Comcast Xfinity... Motorola MG8725 Multi-Gig Cable Modem + Built in WiFi 6 Router | Approved for Comcast Xfinity...
17 Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including... Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including...
18 Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with... Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with...
19 NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatible with Cable Providers Including... NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatible with Cable Providers Including...
SaleBestseller No. 1
Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power...
  • Instantly upgraded you WiFi performance with advanced tech all while saving up to $168 per year in rental fees by owning your cable modem.
  • Access the fastest cable internet plans available, with the future-proof performance of the DOCSIS 3.1 cable modem.
  • Includes a built-in high speed AC3200 WiFi router with Power Boost, Range Boost, and AnyBeam WiFi Beamforming for ultra fast, reliable WiFi.
  • Intelligent mobile app - Comes with a smart WiFi app for easy setup, guest network management, usage monitoring, speed testing, parental controls,...
  • Reliability you can count on - A worldwide leader in technology people depend on. Comes with 2-years of free expert support from our team
SaleBestseller No. 2
NETGEAR Nighthawk WiFi 6 Modem Router Combo (CAX30S) DOCSIS 3.1 Modem & Wireless Router, Compatible...
  • Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT&T, CenturyLink, DSL...
  • Best for cable provider plans up to 2Gbps
  • Coverage up to 2,500 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed (up to 2.7Gbps)
  • Plug in computers, game consoles, streaming players, storage drive, and more with 4 Gigabit Ethernet ports and 1 USB 3.0 port
  • DOCSIS 3.1 and 32x8 channel bonding
SaleBestseller No. 3
ARRIS Surfboard SBG8300-RB DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity,...
  • A Trusted Name in Home Connectivity: Get high speeds, low latency, and a two-in-one product! With the ARRIS SURFboard SBG8300-RB Wi-Fi Cable Modem,...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service...
  • Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better...
  • Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up...
  • Compatibility: The SURFboard SBG8300-RB is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig),...
SaleBestseller No. 4
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast...
  • Ultra-fast DOCSIS 3.1 performance - Delivers true Gigabit-plus speeds. Supports fast internet plans with Comcast Xfinity, Cox, and Spectrum. Backward...
  • Pairs with any WiFi router - Seamlessly compatible with any WiFi router to connect all your devices. This cable modem does NOT have a built-in...
  • Multi-gigabit Ethernet speed - A 2.5 GB Ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing...
  • Fast streaming, conferencing, gaming - Applies Active Queue Management (AQM) for reduced Internet latency and better app performance, including online...
  • Extreme cost savings - Owning your own modem typically saves the home $168 per year in monthly rental charges. (Savings described is for Comcast...
Bestseller No. 5
Netgear Nighthawk Cable Modem WiFi Router Combo (C7800) - Compatible with Cable Providers Including...
  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast and COX. NOT compatible with Spectrum, Verizon,...
  • SAVE MONTHLY RENTAL FEES: Model C7800 replaces your cable modem and WiFi router saving you up to $150/yr in equipment rental fees
  • BUILT FOR ULTIMATE SPEED: Best for cable provider plans up to 2 Gigabits speed
  • FAST WiFi PERFORMANCE: Get up to 3000 square feet wireless coverage and 45 devices connected with AC3200 speed (up to 3200 Mbps)
  • VERSATILE CONNECTIONS: 4 Gigabit Ethernet ports and 2 hi speed USB 3.0 ports give you fast wired connections to your computer, printer, game box,...
SaleBestseller No. 6
ASUS AX6000 WiFi 6 Cable Modem Wireless Router Combo (CM-AX6000) - Dual Band, DOCSIS 3.1, Gigabit...
  • High Efficiency WiFi 6 - Enjoy fast speeds up to 6000 Mbps with WiFi 6 (802.11ax)
  • Compact & CableLabs certified cable gateway to ensure the best compatibility of cable internet service.
  • Small & Elegant Design with embedded WiFi antenna makes it the smallest DOCSIS 3.1 WiFi 6 cable gateway in retail cable industry.
  • 100% Passive Cooling with fan-less design for noise-less experience
  • Cost Saving & Future Proof - Stop Paying modem/router rental fees from your cable provider
Bestseller No. 7
ARRIS - SURFboard DOCSIS 3.1 Cable Modem & Dual-Band Wi-Fi Router Black (Renewed)
  • Wave 2 AC2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports
  • 3 products in 1: DOCSIS 3 1 Cable Modem, AC2350 Dual band Wi-Fi, 4 port Gigabit Router (cable digital voice service not supported)
  • Not Compatible with Comcast / Xfinity. Compatible with Cox, Spectrum, & other Cable internet service required. Not compatible with ATT, Verizon,...
  • 32 downstream x 8 upstream DOCSIS channels, 2 downstream x 2 upstream DOCSIS 3 1 OFDM channels Best for cable internet speed plans up to 4 Gbps. Cable...
  • Setup and manage your network with the SURFboard Manager app Add SURFboard skills to your Alexa network for voice management of your Wi-Fi settings
SaleBestseller No. 8
ARRIS Surfboard DOCSIS 3.1 Modem and AX6600 WiFi 6 Mesh Router System Bundle
  • Super-Fast Speeds: Gigabit Internet & Wi-Fi bundle features modem capability of 2.5 Gbps download speeds, up to 6,600 Mbps Wi-Fi; Router features 4...
  • Blanket Your Home with Great Wi-Fi: The modem & router bundle fills your house with up to 5,500 sq ft of coverage and is compatible with major US...
  • Advanced Technology: Modem features 32 x 8 DOCSIS 3.0 channels, 2 x 2 OFDM DOCSIS 3 1 channels – the latest technology. Mesh Wi-Fi System features...
  • Dedicated Wi-Fi 6 band to Connect Each Unit: The tri-band mesh system creates 3 express lanes using 1 band exclusively for connecting the routers, 1...
  • Fast, Easy, Secure Setup with SURFboard Central App: Provides step-by-step instructions to set-up and manage your network; once setup is complete, the...
SaleBestseller No. 9
ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity, Cox,...
  • A Trusted Name in Home Connectivity: Get high speeds, low latency, and a two-in-one product! With the ARRIS SURFboard SBG8300 Wi-Fi Cable Modem, you...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service...
  • Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better...
  • Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up...
  • Compatibility: The SURFboard SBG8300 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig),...
Bestseller No. 10
ASUS Modem Router Combo - All-in-One DOCSIS 3.0 32x8 Cable Modem + Dual-Band Wireless AC2600 WIFI...
  • Ditch the monthly cable modem rental fees save upto $120 per year
  • Certified by comcast xfinity, spectrum (legacy time warner cable and charter) and cox
  • All in one docsis 3.0 32x8 cable modem + ac2600 wifi router (4x4) provides full bandwidth internet access and expansive wireless coverage
  • Stay connected with 4x gigabit ethernet and 2x USB 2.0 ports for your non wifi devices like external storage and printers including support for Apple...
  • Perfect for streaming and gaming in hd, dual bands (2.4ghz / 5ghz) featuring the latest 802.11ac 32x8 channel bonding technology deliver upto 1.3 gbps...
Bestseller No. 11
NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8x4 Download...
  • Netgear Certified Refurbished product is manufacturer refurbished to work and look as new with 90 Day Warranty and email support. All accessories are...
  • DOCSIS 3.0 cable modem unleashes 8x faster download speeds up to 340 Mbps faster, smoother WiFi, and works with all major cable Internet providers...
  • Certified to work with Cable Internet Providers like XFINITY from Comcast, Time Warner Cable, Cox, Cablevision, Bright House Networks, & More (Not...
  • 8x4 channel bonding with Gigabit Ethernet Ports for fast wired, connections USB port to wirelessly share your hard drive.Double firewall protection...
  • "Netgear Refurbished product may have a removed serial number. You will need to state the product is refurbished (state the full part number) if...
Bestseller No. 12
Amazon eero mesh WiFi router
  • FAST STANDALONE ROUTER - The eero mesh WiFi router brings up to 1,500 sq. ft. of fast, reliable WiFi to your home.
  • WORKS WITH ALEXA- With eero and an Alexa device (not included), you can easily manage wifi access for network profiles to take focus away from screens...
  • EASILY EXPAND YOUR SYSTEM - With cross-compatible hardware, you can add eero products as your needs change.
  • WORKS WITH YOUR INTERENT SERVICE PROVIDER- eero replaces your wifi router and works with most major internet service providers.
  • SET UP IN MINUTES - The eero app guides you through setup and allows you to manage your network from anywhere.
SaleBestseller No. 13
NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatible with Cable Providers Including...
  • Save monthly rental fees: Model C7000 replaces your cable modem and Wi-Fi router, saving you up to 168 dollars/year in equipment rental fees.
  • Speeds by carrier: Xfinity (up to 800Mbps), Cox (up to 500Mbps), Spectrum (up to 400Mbps).
  • Fast Wi-Fi performance: Get up to 1800 square feet wireless coverage and 30 devices connected with AC1900 speed (up to 1900 Mbps).
  • Versatile connections: 4 Gigabit Ethernet ports and 2 USB ports give you fast wired connections to your computer, printer, game box, storage drive,...
  • Modem technology: Engineered with 32x8 channel bonding and DOCSIS 3.1.
Bestseller No. 14
NETGEAR Orbi Whole Home WiFi 6 System with DOCSIS 3.1 Built-in Cable Modem (CBK752) – Cable Modem...
  • Integrated cable modem and WiFi 6 satellite system provides high-performance WiFi coverage for up to 5,000 sq. ft. and 40+ devices. Expand coverage by...
  • DOCSIS 3.1 modem supports internet plans up to 4Gbps and is compatible with most cable service providers. Currently certified with Spectrum and Cox...
  • Fast AX4200 Gigabit speed with WiFi 6 technology for uninterrupted streaming, HD video gaming, and web conferencing Fast AX4200 Gigabit speed with...
  • Save up to 168 dollars/yr in equipment rental fees
  • Sets up in minutes with the Orbi App; easily manage WiFi settings, test internet speed, and monitor data usage
Bestseller No. 15
ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black
  • This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day...
  • Requires CABLE Internet Service, if not sure your provider is CABLE call them to confirm. Does NOT work with Charter cable provider.
  • Compatible with MOST Major CABLE providers like Comcast/Xfinity, Cox, Time Warner, Mediacom, Bright House.
  • Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
  • Internet download speeds up to 172 Mbps and upload speeds up to 131 Mbps based on your Cable provider service. Good for streaming Video and gaming on...
Bestseller No. 16
Motorola MG8725 Multi-Gig Cable Modem + Built in WiFi 6 Router | Approved for Comcast Xfinity...
  • Ultra-fast DOCSIS 3.1 cable modem. Supports fast internet plans with DOCSIS 3.1, backward compatible with 32x8 DOCSIS 3.0. Features one 2.5 Gig...
  • Warp speed AX6000 4x4 router. Power Boost, Range Boost, and AnyBeam WiFi beamforming enable whole-home coverage. Supports multi-gigabit speeds,...
  • Bye bye, latency. This hardware model was the first to Low Latency DOCSIS (LLD) certification by CableLabs, making it LLD ready (requires a firmware...
  • Safety. Privacy. Control. Setup in minutes using the motosync app. Access speed tests, guest network, signal strength, and malware blocking. Create...
  • Superior, but pays for itself. Savings up to $168 per year on modem rental fees.
Bestseller No. 17
Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including...
  • input voltage:120 -240V
  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon,...
  • SAVE MONTHLY RENTAL FEES: Model C7000 replaces your cable modem and WiFi router saving you up to $150/yr in equipment rental fees. System Requirements...
  • BUILT FOR FAST SPEED: Best for cable provider plans up to 400 Mbps speed
  • FAST Wi Fi PERFORMANCE: Get up to 1800 sq ft wireless coverage and 30 devices connected with AC1900 speed (up to 1900 Mbps)
SaleBestseller No. 18
Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with...
  • Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for Wi-Fi
  • Docsis 3. 1 up to 10x faster download speeds than DOCSIS 3. 0. Docsis 3. 1 is OFDM 2x2+ DOCSIS 3. 0 32x8 channel bonding
  • Eliminate monthly cable Modem rental fees - up to $156 per year. Meets DOCSIS 3. 1 specifications and is backward compatible with DOCSIS 3. 0 networks
  • System Requirements- Cable broadband Internet service, Please check your cable Internet service provider web site for data speed tier compatibility...
  • CM1000-1AZNAS is not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with cable bundled voice services
SaleBestseller No. 19
NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatible with Cable Providers Including...
  • Coverage up to 1,800 sq. ft. for up to 30 devices with AC1900 speed (up to 1900Mbps)
  • Replaces your cable modem and Wi-Fi router, saving you up to Dollar 168/year in equipment rental fees
  • Speeds by carrier: Xfinity (up to 600Mbps), Cox (up to 500Mbps), Spectrum (up to 400Mbps)
  • Plug in computers, game consoles, streaming players, and more with 4 x 1G Ethernet ports
  • Share a storage drive with any connected device using the 2.0 USB port

Having trouble finding a great docsis 3.1 modem router combo?

This problem is well understood by us because we have gone through the entire docsis 3.1 modem router combo research process ourselves, which is why we have put together a comprehensive list of the best docsis 3.1 modem router combos available in the market today.

After hours of searching and using all the models on the market, we have found the best docsis 3.1 modem router combo for 2023. See our ranking below!

How Do You Buy The Best Docsis 3.1 Modem Router Combo?

Do you get stressed out thinking about shopping for a great docsis 3.1 modem router combo? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching docsis 3.1 modem router combo, which is why we have assembled a comprehensive list of the greatest docsis 3.1 modem router combo available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for docsis 3.1 modem router combo that you consider buying. Your questions might include the following:

  • Is it worth buying an docsis 3.1 modem router combo?
  • What benefits are there with buying an docsis 3.1 modem router combo?
  • What factors deserve consideration when shopping for an effective docsis 3.1 modem router combo?
  • Why is it crucial to invest in any docsis 3.1 modem router combo, much less the best one?
  • Which docsis 3.1 modem router combo are good in the current market?
  • Where can you find information like this about docsis 3.1 modem router combo?

We’re convinced that you likely have far more questions than just these regarding docsis 3.1 modem router combo, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for docsis 3.1 modem router combo, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible docsis 3.1 modem router combo. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an docsis 3.1 modem router combo buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available docsis 3.1 modem router combo currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of docsis 3.1 modem router combo has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an docsis 3.1 modem router combo?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your docsis 3.1 modem router combo.
  5. Customer Ratings: Number ratings grade docsis 3.1 modem router combo objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their docsis 3.1 modem router combo.
  7. Product Quality: You don’t always get what you pay for with an docsis 3.1 modem router combo, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an docsis 3.1 modem router combo is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining docsis 3.1 modem router combo information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding docsis 3.1 modem router combo is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What’s special about DOCSIS 3.1?

A: The DOCSIS 3.1 release included the latest and greatest digital communication technologies such as Low-Density Parity-Check encoding and very high modulation orders, as well as more than 1 GHz of usable spectrum , that led to a significant increase in network speed and capacity.

Q: What is DOCSIS 3.1 necessary for?

A: If you’re lucky enough to live in an area that does offer speeds at or exceeding 1 Gbps and you subscribe to such a service, a DOCSIS 3.1 modem would be a requirement, not a suggestion.

Q: Do I need DOCSIS 3.1?

A: DOCSIS 3.1 not full duplex will handle 10gbps down and 1-2gbps up. DOCSIS 3.0 will handle 1gbps down and 100mbps up. So no you do not need a 3.1 modem and it is not worth the money unless you plan to upgrade your internet to something that will make use of a 3.1 modem in the near future.

Q: What is the maximum downstream speed of a DOCSIS modem?

A: DOCSIS 3.0 can connect eight or 6MHz channels downstream and achieve speeds up to 440 Mbps (EuroDOCSIS) and 340 Mbps (DOCSIS). Upstream, the D3.0 can reach speeds of up to 120 Mbps., The D3.0 has been the basis of operations in HFC network technology since it was introduced.