Product Comparison: NETGEAR CM400 vs Motorola SB6141

Advertiser Disclosure

This site is a free online resource that strives to offer helpful content and comparison features to its visitors. Please be advised that the operator of this site accepts advertising compensation from certain companies that appear on the site, and such compensation impacts the location and order in which the companies (and/or their products) are presented, and in some cases may also impact the scoring that is assigned to them. The scoring that appears on this site is determined by the site operator in its sole discretion, and should NOT be relied upon for accuracy purposes. In fact, Company/product listings on this page DO NOT imply endorsement by the site operator. Except as expressly set forth in our Terms of Use, all representations and warranties regarding the information presented on this page are disclaimed. The information which appears on this site is subject to change at any time. More info

NETGEAR CM400 DOCSIS 3.0 High Speed Cable Modem

Check Price

Best Pick

Motorola SB6141 Comcast, TWC, Cox Version - DOCSIS 3.0 Cable Modem

Check Price

General Specifications

Brand

Netgear

Motorola

Model

CM400

SB6141

Origin

China

About the Product

Eliminate your monthly equipment rental fees and get up to 340Mbps. Whether you're streaming or gaming, you'll enjoy faster connections and speed to spare. Compatible with cable Internet providers (ISP’s) like XFINITY® from Comcast, Spectrum, Cox, Cablevision and more.

The SURFboard SB6141 is a perfect fit for a blazing-fast home network. The SB6141 is a DOCSIS 3.0 Cable Modem that provides you with 343 Mbps download speeds – perfect for things like streaming HD Video, online gaming, shopping and downloading. It supports IPv6 – the latest Internet standard and is compatible with major U.S. Cable providers. The SURFboard SB6141 is easy to install so you’ll be surfing in a matter of minutes, it’s easy to see why we’re The Market Leader in modems!

Key Specs

ISP Compatibility

Universal

DOCSIS Certification

3.0

Downstream Data Speed

343 Mbps

Upstream Data Speed

122 Mbps

131 Mbps

What customers say about "Key Specs"

NETGEAR CM400 DOCSIS 3.0 High Speed Cable Modem

Great speed at a very good price. Compatible with time warner cable service A plug and play device
Great speed for the price. It was easy to set up and the app helps.
The setup of this modem was super quick. I was up and running in 15 minutes. The price was perfect for the amount of speed you get. I would recommend this modem to any friend or family member.
I'm getting better than advertised speeds with this. I know this is not necessarily just because of the cable modem, but I thought it was worth mentioning.
I needed this item as I was changing internet providers and it doing its job.

Motorola SB6141 Comcast, TWC, Cox Version - DOCSIS 3.0 Cable Modem

Love this modem along with my Night Hawk 6 my internet has never been this fast and my download speed for everything is faster
Great modem and works with Cox. Our speed has increased without us changing our internet package.
Fast Internet connection, minimize interference for enhanced performance. Great for the price.
Works great. Previous docsis 2.0 modem was at 4.7 mbps now with SB6141 speed is almost 80 mbps
It came in a plain box with a power cord, Ethernet cable and some instructions. I hooked it up, called my cable company, Comcast Infinity to activate and I'm getting 30 download speeds even though I pay for 25. Great price! Very happy!

Size & Weight

Color

Black

Height

5.8 in.

5.7 in.

Width

1.8 in.

1.5 in.

Depth

3.8 in.

5.7 in.

Weight

0.44 lbs.

2 lbs.

Ports

Number of LAN Ports

Wi-Fi Connection

Other Ports

Coaxial

Number of LAN Ports

What customers say about "Ports"

NETGEAR CM400 DOCSIS 3.0 High Speed Cable Modem

Very easy to use with good connection. No problems with staying connected
Working great. I have a great connection and constant service.
Its a good unit, no special speeds or usb ports. it works well, reliable no problems after 7 months, affordable $
Intermittent connection when connected directly to pc, but it soon failed altogether. Even after rebooting and disconnecting it from my pc.
This modem from Netgear has everything you need for high speed cable (Dociss 3.0), My only criticism is that you only have 3 ports. One is for your coaxial cable, another for the Ethernet cable, and its own power cord. That's really all you need unless you have multiple devices, no Wifi or no router

Motorola SB6141 Comcast, TWC, Cox Version - DOCSIS 3.0 Cable Modem

Works perfect - internet running 118MBPS. No problem to connect. Price was super and quality is great.
I had the SB6121 before this, and bought this when I upgraded my internet to a 200Mbs down plan that needed additional channels. Both devices have worked flawlessly. Everyone I know that tries to use the combo devices from Comcast suffers from unstable connections and frequent outages.
Outside of my return window, connects for only a few minutes at a time then loses connection. Keep looking for a modem
Router unable to connect to modem, computer unable to connect to modem: network card activity lights: blink-blink pause, blink-blink pause = computer attempting to communicate, modem not replying.
The package doesn't come with coaxial cable.

Features

Wired Speed

1000 Mbps

Number of Download Channels

Number of Upload Chanels

Buttons

Reset

Extras

Works with Cable Internet Providers like XFINITY® from Comcast, Spectrum, Cox, Cablevision & more, IPv6 next generation Internet addressing support, Gigabit Ethernet port with auto-sensing technology, Simple—CD-less installation, Memory: 8MB flash and 64MB DDR, IPv6 support (Internet Protocol Version 6)

Front-panel LEDs indicate status and simplify troubleshooting, Supports IP addressing using IPv4, IPv6, and/or IPv6 (dual stack)

Number of Download Channels
Number of Upload Chanels

What customers say about "Features"

NETGEAR CM400 DOCSIS 3.0 High Speed Cable Modem

Good for everyday user just call in your MAC address and your online. Great for the price point I just wish it had more advanced features, bridging is one.
Great for the money! Very satisfied with the performance, quality and features.
Great product! Great features and easy to use! iPhone genie app is a must!
Comcast has a feature with their service that allows for remote configuration of new modems. Took all of two minutes to get the modem setup and working. No issues.
Supports 8 downstream and 4 upstream channels providing efficient and reliable Internet access even during peak hours

Motorola SB6141 Comcast, TWC, Cox Version - DOCSIS 3.0 Cable Modem

It came in a plain box with a power cord, Ethernet cable and some instructions. I hooked it up, called my cable company, Comcast Infinity to activate and I'm getting 30 download speeds even though I pay for 25. Great price! Very happy!
So anyway, this no frills modem works just fine and was up and running immediately after I called Wow to give them the MAC address they need to register and access it on their end.
Works, but lacks of the more advanced features found in most common router
Terrible. Bought new and it very clearly was not new. Smudges and scratches from wear and tear, product said new but was definitely used previously. Only half the lights would light up let alone stay solid. On reset on the power button showed.
The blue LEDs are waaaaaaaaaay too bright. Tape over them, and the light escapes from the sides. One of them blinks constantly. Placement of this modem is key.

Warranty / Certifications

Manufacturer Warranty

1 year(s)

Certifications

CE, FCC

Other Information

Manufacturer

Link

Manual

Download