9 best modem for wow internet

Product description

Introducing the first DOCSIS 3.1 cable modem in the SURFboard lineup. The SURFboard SB8200 is a DOCSIS 3.1 modem – the newest technology being offered by cable providers. It is capable of the fastest speeds available by cable Internet service providers, perfect for things like 4K Ultra-HD Video Streaming and Virtual Reality Gaming. Plus, it has 2 Gigabit Ethernet ports! The SB8200 is compatible with major US Cable providers like Comcast (Xfinity service by Comcast) Cox, and others. Today’s connected home demands speeds far more powerful than ever. Power your home network with the SB8200 and get the fastest speeds and most reliable connection to the Internet. Own yours today and stop paying rental fees.

• DOCSIS 3 1 Cable Modem best for cable internet speed plans up to 2 Gbps. Note, a 2nd IP address is required from your cable internet provider to reach 2 Gbps.
• 32 downstream x 8 upstream DOCSIS 3 0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
• Two 1-Gigabit Ethernet ports capable of link aggregation
• others Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
• Cable internet service required Does not inlcude Wi-Fi and does not support cable digital voice service

User questions & answers

Question:	How is this model different than the arris surfboard sb
Answer:	The sb6121 only has speeds of 172 Mbps download and up to 131 Mbps upload. This model has up to 343 Mbps download and 131 Mbps upload.
Question:	Going with the cable modem option what’s the best router to pair this with for spectrum
Answer:	It depends on your needs. Needs are based on the number of devices connected and the size of area you are trying to cover. I would highly recommend a mesh network unless your home is 1200sqft or smaller. A centrally located router could cover that. The biggest problem is getting the 5ghz frequency to reach throughout the home. The 5ghz gives you speeds over 30mbps on wireless devices. 5ghz will reach roughly 40ft in all directions from your access point (ap). A mesh system gives you multiple ap and thus more area covered by the 5ghz.
Question:	How many devices can connect at once? Is that that the 8x refers to
Answer:	The 8x doesn't refer to the number of devices you can connect to it. You only want to connect one device and that's your WiFi router. You wireless router determines how many devices can be connect based on the available number of ip addresses on the wireless device. The 8x refers to the speed of Data Over Cable Service Interface Specification (DOCSIS). Its informing you on the speed of DOCSIS 2.0 vs the newer DOCSIS 3.0. Ultimately your speed will be determined by how much you want to pay your internet provider. And you can determine how many devices you want to connect by the router you choose.
Question:	Do I also have to buy a router for the modem? And to make sure it obviously speeds up internet connection right
Answer:	If you only need to have one computer hooked up to the internet you do not need a router. If you want to hook up more than one computer or if you want a wireless network, you will need to buy the appropriate router. My internet speed went from 20mb to 100mb(the speed I pay extra for). TWC has also stopped charging me $8.00 a month for the use of their inadequate equipment.

Product features

Harness the power of DOCSIS 3.1 with the SURFboard SB8200 Cable Modem

Compatible with major U.S. cable internet providers: The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It's approved for cable internet speed plans up to 2 Gbps. Check your cable ISP website to confirm compatibility. (Note, a 2nd IP address may be required by your cable internet provider to achieve 2 Gbps speeds.)

The newest, fastest technology available

DOCSIS 3.1 is the newest technology available from cable internet providers that enables fast, efficient internet speeds.

Two 1-Gigabti Ethernet Ports

Two 1-Gigabit Ethernet ports capable of providing speeds up to 2 Gbps. (Note, a 2nd IP address may be required by your cable internet provider to achieve 2 Gbps speeds.)

Quick & easy setup

With a few simple cable connections and a quick visit to your ISPs self-activation portal, your network will be up and running in no time.

1. Connect the cables: coaxial, power, Ethernet

2. Contact your ISP (via web portal) to activate

3. Connect to a Wi-Fi router to setup your devices

Product description

The SURFboard SBG10 is a DOCSIS 3. 0 16x4 cable modem, Wave 2 AC1600 Dual Band Concurrent Wi-Fi Access Point and 2-Port Gigabit Ethernet Router, all wrapped up in one device. Refer instruction manual for troubleshooting steps.

• 3 products in 1: DOCSIS 3 0 Cable Modem, AC1600 dual-band Wi-Fi Router, 2 Port Gigabit Ethernet Router (cable digital voice service not supported)
• Wi-Fi 5 AC1600 dual-band concurrent Wi-Fi Router with 2 Gigabit Ethernet ports
• Setup and manage your network with the SURFboard Manager app
• Compatible with major U S Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
• 16 downstream & 4 upstream channels. Best for cable internet service plans up to 400 Mbps.

User questions & answers

Question:	Is this both a modem and router ? (2 in1 thing
Answer:	Yes it is! It has dual functionality. If you have a router you like already you can turn the wifi part off and just use it as a modem
Question:	This says it isn't compatible with at&t, does that mean my iphone, with an at&t connection, will not be able to use this modem
Answer:	It is not compatible with AT&T High Speed Internet service, only good with traditional Cable Service. Your iPhone will connect to the Wi-Fi without issue.
Question:	i'm using this with netgear router (with port forwarding). therefore i have to run this modem in bridge mode. would i be better with a cheaper modem
Answer:	I think you'd be better with a cheaper modem. The whole point of getting this modem is so you don't need to purchase a separate router/Wi-Fi access point.
Question:	I was reading that you cannot run the lan jack and wifi at the same time on this device, is that true? Has anyone else experienced this problem
Answer:	Yes, you can use LAN and wifi the same time.

Product features

A high-speed internet experience that's quick, easy and economical

2 products in 1 - The SURFboard SBG10 combines a DOCSIS 3.0 cable modem with an 802.11ac Wi-Fi router with 2 one-gigabit Ethernet ports. It has 16 downstream and 4 upstream channels and AC1600 Wi-Fi, making it a perfect choice for homes with less devices to manage. The all-in-one modem & Wi-Fi router combo means no more managing multiple devices and is best for Cable Internet Speed Plans up to 400 Mbps. Plus, it saves you money on monthly modem rental fees and fits easily into any home office.

Compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. If you are unsure about compatibility, check your ISP website or the ARRIS website to confirm.

2 products in 1

The SBG10 combines a DOCSIS 3.0 cable modem with a 802.11ac Wi-Fi router equipped with 2 one-gigabit Ethernet ports. A space-saving and economical option.

Compatible with major U.S. cable internet providers

The perfect addition to your home network, the SBG10 is compatible with major U.S. cable internet providers, including Cox, Spectrum, Xfinity and others. It's best for internet speed plans up to 400 Mbps.

Quick & easy setup

With just a few quick cable connections and a visit to your ISP's activation page, you can have a lightning-fast home network up and running.

1. Connect the cables: coaxial, power, Ethernet
2. Contact your service provider (via web portal) to activate
3. Configure your Wi-Fi settings and connect your devices

Two 1-Gigabit Ethernet Ports

The SBG10 is equipped with two 1-gigabit Ethernet ports for ultra-fast wired networking. Perfect for connecting smart TVs, gaming consoles and more.

Product description

Nighthawk Multi-Gig speed Cable Modem by NETGEAR supports link aggregation to deliver true Multi-Gig Internet speeds. It improves your internet connections and provides smooth online streaming and gaming. This DOCSIS 3.1 cable Modem is ready for today's service plans and future upgrades for XFINITY from Comcast, spectrum & Cox.

• Compatible with all major cable internet providers: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
• Save monthly rental fees: Model CM1200 replaces your cable modem saving you up to dollar 168/yr in equipment rental fees.
• Built for ultimate speed: best for cable provider plans up to 2 gigabits speed.
• Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
• Versatile connections: 4 Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices.
• Modem technology: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1.
• Multi-gig Ethernet: Link aggregation combines two 1G ports into one 2G port for faster wired Ethernet speed.

Product features

Why Buy Your Own Modem?

Save up to 168 Dollars /year

Eliminates monthly rental fees that can amount 168 dollars or more a year.

No WiFi limits

You’re free to choose & connect the best router for your home’s WiFi needs.

Compatibility

Swap modems. Not problems. CM1200 is compatible with all major cable providers including Xfinity by Comcast, Spectrum, and COX.*

*Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirectTV, DISH and any bundled voice services.

Built for Ultimate Speed

Supports cable internet plans with speeds up to 2Gbps ensuring ultra-reliable internet speed for heavy-duty 4K HD streaming, multi-player gaming and more.

The 4 Gigabit Ethernet ports allow the fastest wired speeds to your computer and router. And can be aggregated into 2 ports with 2 Gbps each.

Works with Any Wi-Fi Router

Plug the modem into the router that best meets your wireless needs and start streaming.

Easy 5 Minute Setup

Step 1: Plug your coax cable into the modem.

Step 2: Activate by either

(a) connect an Ethernet cable to your computer and follow the on-screen setup, or

(b) call your cable provider to activate over the phone.

Step 3: Plug an ethernet cable between the modem and your Wi-Fi router.

• COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and Cable bundled voice services
• 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 Cable broadband Internet service, Check your cable Internet service provider web site for data speed tier compatibility, Not compatible with Cable bundled voice services, Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, UNIX, or Linux, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
• 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)
• VERSATILE CONNECTIONS: 4 Gigabit Ethernet ports and 2 USB ports give you fast wired connections to your computer, printer, game box, storage drive, and other devices
• MODEM TECHNOLOGY: Engineered with 24x8 channel bonding and DOCSIS 3.0
• SAFE & SECURE: Includes parental controls, and supports WEP and WPA/WPA2 wireless security protocols

User questions & answers

Question:	does it work with vpn
Answer:	Yes
Question:	Will this support NAS
Answer:	yes
Question:	Do i need to purchase a separate modem to receive wifi? or will this device serve as both the router and modem to serve a wifi connection
Answer:	There is no need to purchase a wireless router. It’s has both WiFi functionality with good range and four jack plugs in the back of the modem for an Ethernet line connection It is an impressive piece of equipment for the price.
Question:	How to connect if cable from outlet is not coax? i have rcn and the wire coming from the outlet is some weird wire, not ethernet, not coax
Answer:	If it is DSL, you need a special DSL modem. This modem won't work with DSL.

• Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps. Wirecutter rates this “the best modem for most people.” A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
• This cable modem's one Gigabit Ethernet port connects to a WiFi router, computer, HDTV, game station, or streaming video device. Great for use with Whole Home WiFi or Mesh networks like eero, Google WiFi, and Orbi. (This cable modem does not have a built-in wireless router or telephone call capability. The Motorola MG7315, MG7540, MG7550, and MG7700 have a built-in wireless router.)
• Requires cable Internet service.Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, BrightHouse, CableOne, SuddenLink, RCN, and other cable service providers. Eliminate cable modem rental fees up to 156 dollars per year. (Savings are shown for Xfinity and vary by cable service provider. No cable modem is compatible with fiber optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and others. Model MB7621 has no phone jack.)
• Setup is fast and easy using the quick start guide. Experienced USA-based Motorola customer support specialists are happy to help if you need them. Support is in English or Spanish.
• Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment. Includes phone and web support by friendly, professional USA-based technical support specialists.

User questions & answers

Question:	So how do control the cable modem if comcast doesn't provide one
Answer:	Once you install the modem you can either go online and register the device or call Comcast with the serial number. It will then activate and you are good to go. I’ve had no issues with mine at all. And online registration was very easy.
Question:	Quick start quide says it doesn't have wifi capability or router. so, can i get to xfinitywifi wirelessly or not
Answer:	Model MB7621 is a bridge modem, or a Cable modem without a built in WiFi router. You can either purchase an all in one (modem with the built in WiFi router) such as a Motorola MG7700, or purchase a a WiFi router to connect to the MB7621.
Question:	Which one is better for my needs - the mb-7621 or the mb-7420? comcast highest speed for home use is 150 mbps and 100 for downloads
Answer:	3 things I can tell you. 1. The 7621 is 24 x 8 channels vs 16 x4 for the 7420. More channels means better flow of the data. 2. The 7621 can handle 1000 Mbps vs 643 Mbps for the 7420. Good for future upgrades of your internet speed if needed. 3. The 7621 came out in Dec 2017 vs 2015 for the 7420, newer tech, longer support from right now.
Question:	What chipset is the mb7621 utilizing? intel or broadcom or other
Answer:	Model MB7621 and all Motorola modems utilize the Broadcom modem chipset.

Product features

The smart choice for your cable Internet service

Eliminate monthly cable modem rental fees – Typically saves 156 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.

600+ Mbps – Maximum actual Internet download speed

GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.

Connect any WiFi router you choose

Plugs easily into any router for shared Internet access by all your WiFi and Ethernet-capable devices. This flexible approach lets you pair this cable modem with any router you choose for your WiFi needs, including a mesh router or gaming router.

If the MB7621’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.

Compatible with Most Cable Providers

Certified by Comcast Xfinity, Cox, Charter Spectrum, and other cable providers.*†

* Not compatible with Verizon, AT&T, CenturyLink, and other fiber optic, satellite, or DSL services.

† This cable modem does not have telephone jacks for the support of voice calls.

Fast Internet Speed

For other service providers, supported service speeds are similar to Comcast.

Easy Setup

Connects fast with just 3 connections – power, coax cable, and Ethernet.

• This 16x4 DOCSIS 3.0 cable modem provides speeds up to 686 Mbps, sixteen times faster than DOCSIS 2.0. A Full-Band Capture digital tuner ensures a faster, more reliable Internet.
• Cable modem's Ethernet port connects to a computer, HDTV, game station, or wireless router. (This Model MB7420 cable modem does NOT have a built-in wireless router and does not have a telephone adapter or phone jack. The Motorola MG7310, MG7315, MG7540 and MG7550 have a built-in wireless router.)
• Requires cable Internet service. Certified by Comcast XFINITY for residential speeds up to Extreme 300, by Comcast Business for speeds up to Deluxe 250, Time Warner Cable, Cox, Charter Spectrum, BrightHouse, and other leading cable service providers for modem ownership programs that typically save rental charges of $120 or more per year
• Setup is fast and easy with a few quick steps set out in a Quick Start guide. Experienced USA-based customer support specialists are there to help if you need them.
• Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment.

User questions & answers

Question:	How warm does this modem run? Some of the more recent SB modems ran too hot, leading to early failure
Answer:	Handling of heat was definitely considered in the MB7420 design. All cable modems generate heat, the good designs get rid of the heat efficiently. The MB7420 is very well ventilated on both sides and on the top, and has robust heat sinks on the circuit board to dissipate the heat. The vertical design also helps air circulation. The two year warranty is the longest in the industry and speaks to the durability of the product. With that said, definitely do not operate the MB7420 on its side. The MB7420 is intended to be in a vertical position.
Question:	Are the leds insanely bright like on other motorola modems
Answer:	Whether the LEDs have the right amount of brightness is an opinion. The MB7420 LED brightness was reduced in response to user reviews on earlier modem designs. Definitely attention was paid to the output level and the electronic design throttled back the brightness. You will probably find it a good, but can't say for sure. Your opinion would be welcome.
Question:	Can the stabilizing foot be removed so the modem can lay on its side? Is it screwed/clipped on
Answer:	The foot is attached with 2 screws under the label. It is designed to stand up on the foot to allow for adequate cooling for the modem at high speeds. It is not designed to lay flat on its side with one panel blocked. It is recommended that both side panels and the top not be blocked. Laying it on its side and blocking the ventilation could produce improper operation and unit failure.
Question:	Is this part of the arris motorola surfboard line up of modems
Answer:	No, it is not. This is a much newer design. The MB7420 has a Full Band Capture Digital Tuner, upgraded power handling to protect against lightning and power surges, robust heat sinks to handle a broad temperature range. And the MB7420 looks a lot better than the Arris SB6141.

Product features

The smart choice for your cable Internet service

Eliminate monthly cable modem rental fees – Typically saves 156 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.

300+ Mbps – Maximum actual Internet download speed.

GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.

Connect any WiFi router you choose

Plugs easily into any router for shared Internet access by all your WiFi and Ethernet-capable devices. This flexible approach lets you pair this cable modem with any router you choose for your WiFi needs, including a mesh router or gaming router.

If the MB7420’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.

Compatible with Most Cable Providers

Certified by Comcast Xfinity, Cox, Charter Spectrum, and other cable providers.*†

*Not compatible with Verizon, AT&T, CenturyLink, and other fiber optic, satellite, or DSL services.

† This cable modem does not have telephone jacks for the support of voice calls.

Fast Internet Speed

For other service providers, supported service speeds are similar to Comcast.

Easy Setup

Connects fast with just 3 connections – power, coax cable, and Ethernet.

Product description

Ultra High-speed Internet and Wireless AC at your fingertips. The SURFboard SBG6900AC Wi-Fi Cable Modem is 3 products in one device: DOCSIS 3.0 Cable Modem, Dual-Band 802.11ac Wi-Fi Access Point and 4-port Gigabit Ethernet Router. Capable of download speeds up to 686 Mbps and Wi-Fi speeds up to 1900 Mbps per band, the SBG6900AC is an affordable, complete solution for your home network. And with built-in security you never have to worry. SURFboard. The Market Leader in modems.

• 3 products in 1: Cable Modem, AC1900 Dual band WiFi and 4 Port Gigabit Router
• Requires cable internet service. Compatible with major U.S. Cable Providers like Xfinity, Spectrum, Cox, Suddenlink, Mediacom, etc. Not compatible with ATT, Verizon or CenturyLink.
• 16 DOWNLOAD & 4 UPLOAD channels to maximize your Cable ISP service offerings. . Recommended for plans of 300 Mbps and below
• AC1900 2.4/5.0 GHz Dual-band Concurrent Wi-Fi Router with 4 Gigabit Ethernet ports. Wi-Fi beamforming – max coverage and performance
• 90 Day Warranty. ARRIS Certified Refurbished. US Technical support

User questions & answers

Question:	Does this modem support phone service from Xfinity
Answer:	No.
Question:	Is there any way i could use this in china? i've entered pppoe id and pw provided by isp on wan setting which is set as l2tp, but no luck
Answer:	Wherever you are...; be it China or the USA; you must take your device to the local office of your ISP (Internet Service Provider) and have them approve it plus register it with their system. ISP protocols are generally universal worldwide but also universal is the premise that you may not access their system without their permission and they expect to get paid for providing the service
Question:	Is this router compatable for voip phone services provided by the cable provider
Answer:	No.
Question:	how is the warranty isuue? how long
Answer:	Warranty is for 3 months. I'd recommend to buy a new one not refurbished. My modem isn't working any more.

• Top Internet Speeds for all Multi-gigabit Speed Tiers - Wirecutter recommends this model as the best cable modem for people using Gigabit Internet plans. Built-in DOCSIS 3.1 and DOCSIS 3.0 32x8 capabilities give top Internet speeds for all cable Internet services.
• Save Money - Eliminate up to 168 dollars per year in cable modem rental fees (Savings are shown for Comcast Xfinity and vary by cable service provider.) Approved by Comcast Xfinity and Xfinity X1, Cox, and CableOne for all speeds including Comcast Gigabit services and Cox Gigablast. Not compatible with RCN. No cable modem is compatible with fiber optic, DSL, or satellite services, available from Verizon, AT&T, CenturyLink, Frontier, and others.)
• Flexible Compatibility - Pair with any Wi-Fi router you’d like, including Whole Home Wi-Fi or Mesh routers like eero, Google Wi-Fi, and Orbi. A 10/100/1000 Gigabit Ethernet port allows connection of any SINGLE device with an Ethernet port including a router, Windows or Mac computer, HDTV, or game station. This cable modem does not have a built-in wireless router or telephone call capability.
• Proactive Network Security - A broadcom chipset provides advanced security from denial-of service attacks.
• Active Queue Management (AQM) - AQM significantly reduces Internet latency on both DOCSIS 3.1 and 3.0 services, resulting in faster page loads for all Web traffic and enhanced interactive applications like online gaming and video conferencing. The MB8600 also includes a full-band capture digital tuner to enhance speed and save energy.

User questions & answers

Question:	Confirming that only one device can be connected to the modem, despite additional lan ports? you can't connect, say your pc and a router at same time
Answer:	The MB8600 will allow for one device. You can connect your PC to the MB8600, or connect a router to the MB8600.If, in the very unusual situation, you are paying for and receiving more than one IP address from your provider, then you can directly connect up to 4 devices to the MB8600.
Question:	I also need wifi, what do you recommend
Answer:	The MB8600 modem will work with any WiFi router. Given the speed of the MB8600, you should be using at least an AC1900 router and given the other devices in your network, you might be able to take advantage of a wireless speed even faster than AC1900.The Ethernet port on the MB8600 simply plugs into the WiFi router of your choice. The router should be current enough to have a Gigabit WAN port (10/100/1000 Ethernet port), since you will need that for the speeds that the MB8600 can deliver. And for now, 1 Gbps service is the fastest cable service Comcast is providing in the US. When Comcast or other cable Internet service providers begin providing service speeds over 1Gbps, the MB8600 has the bonded Ethernet ports which will allow the MB8600 to deliver speeds above 1 Gbps. We are not aware of a consumer-home/small office router that does Ethernet port bonding today, but they are coming. Ethernet port bonding is available on Enterprise level routers (routers used in large organizations), but we can't recommend that class of product for a consumer at this point. They are more complicated than you need and more expensive. Bonded Ethernet ports for consumers will appear by the time Comcast is ready to begin delivering speeds above 1Gbps and the MB8600 will be ready to deliver those speeds.In summary: Use at least an AC1900 wireless router Be sure the router you choose has a Gigabit Ethernet WAN port.
Question:	Does this use the now-notorious Intel Puma 6 chipset
Answer:	Model MB8600 and all Motorola products use Broadcom chipsets and do not have the problem associated with the Puma 6 chipset.
Question:	Do all four Ethernet ports on this modem output the same amount of bandwidth or are there only certain ports that operate at maximum capacity
Answer:	The reason for four ports on a modem requires some explanation. It is important to understand the MB8600 does not do routing. The MB8600 is a modem only. A router can be connected to any of the MB8600 GigE ports. The link between the router and the modem is then capable of using the full rate of the one Gbps service Comcast currently can provide with their new DOCSIS 3.1 service. In the future, Comcast and other cable services are expected to offer services faster than on 1 Gbps. When those faster services are offered, the additional ports in the MB8600 will be needed. Ports 1 and 2 can be bonded to allow up to 2 Gbps to be delivered by the MB8600. The other two ports on the MB8600 are there to allow additional port bonding for speeds over 2 Gbps. When Comcast has service speeds over 1 Gbps, the router connected to the MB8600 also needs to do port bonding to take advantage of the port bonding in the MB8600. Routers used by consumers today do not support port bonding. Some routers used in corporate networks do support port bonding. In the future, routers used in homes and small businesses will be sold that support port bonding so they can take advantage of future service speeds that will be faster than 1Gbps. In summary, the four ports on the MB8600 are there to allow the MB8600 to deliver service speeds above 1 Gbps WHEN THOSE SERVICES ARE AVAILABLE. That is good design. Think twice before you buy a modem that pretends to offer speeds above 1Gbps and does not have multiple ports that can be bonded. You can not get a speed above 1 Gbps unless you have a way to get the fast speed out of the modem. The MB8600 is designed to allow speeds above 1 Gbps to be delivered to a router with bonded GigE ports. Other modems are not as well designed.

Product features

The smart choice for your cable Internet service

Eliminate monthly cable modem rental fees – Typically saves 156 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.

1,000+ Mbps – Maximum actual Internet download speed

GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.

Connect any WiFi router you choose

Plugs easily into any router for shared Internet access by all your WiFi and Ethernet-capable devices. This flexible approach lets you pair this cable modem with any router you choose for your WiFi needs, including a mesh router or gaming router.

If the MB8600’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.

Compatible with Most Cable Providers

Certified by Comcast Xfinity, Cox, and other cable providers.*†

* Not compatible with Verizon, AT&T, CenturyLink, and other fiber optic, satellite, or DSL services.

† This cable modem does not have telephone jacks for the support of voice calls.

Ultra-Fast Internet Speed

For other service providers, supported service speeds are similar to Comcast.

Easy Setup

Connects fast with just 3 connections – power, coax cable, and Ethernet.

Product description

The NETGEAR CM400 High Speed Cable Modem provides a connection to high-speed cable Internet, up to 340Mbps. It is Cable Labs certified and with DOCSIS 3. 0 is 8X faster than 2. 0. It is compatible with U. S. cable Internet providers like Cablevision, Cox, Time Warner Cable, XFINITY & more.

• ELIMINATE MONTHLY CABLE MODEM RENTAL FEES - Up to $156 per year
• DOCSIS 3. 0 Cable Modem with 1 Gigabit Ethernet port. One Gigabit Ethernet port with auto-sensing technology
• Up to 340Mbps download and upload speed. Separate router required for WiFi. 8x4 channel bonding.
• DOCSIS 3. 0 unleashes 8x faster download speeds than DOCSIS 2. 0
• Ideal for streaming HD videos, faster downloads, and high-speed online gaming
• Required for the fastest cable Internet speed tiers
• Compatible with Xfinity from Comcast, Spectrum, Cox, & more. Not compatible with bundled voice services.
• Memory storage capacity: 64.0 MB

User questions & answers

Question:	I bought this modem & my Linksys wireless is too old to handle the speed. Can anyone recommend a good wireless router to go with this? for home use
Answer:	It works really well with my new time capsule! Details on time capsule here: http://www.apple.com/airport-time-capsule/
Question:	Is this compatible with Time-Warner cable and will this work with Google Voice? Can i use the Netgear 7550 for its router
Answer:	I live in Queens New York, and I have this modem for a few months with time warner cable . I got 100 Mbps with no issues using the Asus Wireless Router .That's what I paid for, I don't know if we the modem can take the 200 or 300 Mbps. It will work with Google voice
Question:	Any advice on the steps to set it up? Is the serial number necessary? (I am having Comcast
Answer:	I have Comcast and the SN is necessary to get it setup (call them). Mine had the SN blacked out so I had to plug it into a computer, then use a browser to see the SN by logging into the admin screen (192.168.0.1)
Question:	will this work with comcast (xfinity) hi speed internet & vonage home phone? thanks
Answer:	I bought it specifically to replace the comcast supplied modem after I terminated my landline. It is supposed to work with comcast hi speed internet, but it performed poorly. I returned it and replaced it with the equivalent Motorola model which has been far superior in performance (cost about $20-30 more.) I suspect that this model works better with satelite, but this is merely speculation. I would not recommend it.