This ARRIS SURFboard SB6141 DOCSIS 3.0 high-speed cable modem delivers 8-channel downstream data speeds up to 343.1 Mbps for fast Internet connection. The internal filter helps minimize interference for enhanced performance.
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For compatibility with PC, Mac, Linux, UNIX and most home networking applications.
No telephone lines needed
So the modem is always on and always connected.
For blazing-fast speed. GigE RJ-45 data port with Auto Negotiate and Auto MDIX for enhanced operation.
8-channel downstream data speeds up to 343.1 Mbps
Along with single-channel downstream data speeds up to 42.9 Mbps and 4-channel upstream data speeds up to 131.1 Mbps for quick response time.
Front-panel, dual-colored LEDs
Provide easy visual confirmation of bonded channels and GigE link use. User-friendly online diagnostics offer simple troubleshooting.
Integrated DOCSIS 3.0 TDMA and S-CDMA technology
Backward compatible with existing DOCSIS 1.0, 1.1 and 2.0 systems. Also supports IPv4 and IPv6, Advanced Encryption Services, EuroDOCSIS mode and DOCSIS 3.0 standards.
With up to 8 downstream channels and 4 upstream channels for optimal performance.
1.0GHz low-pass filter
Helps eliminate interference from MoCA signals' intermodulation beats.
Enhanced network management
With IP multicast provisioning and management capabilities.
Compatible with Motorola SB6120 and SB6121 models
For simple integration with your existing setup.
Note: Ask your cable company if they support DOCSIS cable modems. DOCSIS (Data over Cable Service Interface Specification) is the industry standard for cable-based Internet access service
Best Buy Customer Reviews
Great replacement for Motorola modem from TWC
Posted by: Bill from: on
This is a simple plug&play replacement for the similar Motorola model issued by Time Warner Cable. A while back they started charging $10/month to rent a modem....this was $70 to purchase and use for years without rental fees, and looks very similar and works the same. Works just as well. Doesn't have the multiple Ethernet jacks on the back, but, these days, you really only need one for your wireless router. The body is glaring hospital white, and, speaking pf glare, the operating blinking lights are very bright and distracting in a dark room. If you are with Time Warner Cable, you will need to make a free call to them to authorize this new modem, mine took about 20 minutes. As part of that set-up, you will need to make a WIRED connection to this modem from your computer, NOT using the wireless router in your house. Once the computer, modem, and the person on the phone are all connected, you can then hang-up and reconnect your wireless router to this new modem. It may take an hour or two for your wireless router to "learn" the language of this new modem but they will eventually "get along" just fine.
4 out of 4 found this review helpful.
Don't Pay a Lease
Posted by: DavidEBB from: Katy, TX on
Comcast increased my lease from $5 to $10 per month so I started looking for alternatives. I've always known that you could get your own modem, but for $5 a month it was worth it to me because if anything went wrong they would provide tech support and would give you a new one if it went bad. I was already using my own router, so it made Comcast's modem router combo half useless. I had asked about just getting a modem and if might be less, but they said they didn't have any.
I wish that I had made the move earlier. Set up was easy. I literally called Comcast and then plugged it in. The speeds are the same as the previous modem, which is the most important thing. I've even had less disconnects than with the Comcast unit. WI would absolutely recommend this.
7 out of 7 found this review helpful.
Good value, speedy little modem
Posted by: CTReader from: on
Bought to replace modem fried by lightening. Got same model as it continues to get great reviews and is now $20 less than when I bought it a year ago! Back then it tested significantly faster than the "gateway" modem Comcast charges about $120/yr to rent. I don't blame it for getting fried by the lightening---struck practically on top of us. Modem was plugged into surgepro along with a router and roku, but only the modem got fried. Learned that surge can come in via cable, so only detaching the coax would have saved it---unusual for this to happen, but still something to know. When I called Comcast, they tried to tell me this modem is "legacy" "end-of-life", blah, blah, blah---total BS! Works great. Oh, and while square trade sent me a check to cover the replacement, dealing with them via phone was a BIG pain---new modem has Best Buy extended warranty so if there's a problem I can go back to the store and get a replacement right away. No international phone calls needed----worth the extra dollar!
4 out of 6 found this review helpful.
Phenomenal customer service, warranty and product.
Posted by: post87 from: on
Had internet reception problem - new ISP, new modem, old router. Did not know source of problem. Arris put a large notice to call them when anything goes wrong. Fast phone answer, technician walked me through steps to dx the source. He waited patiently while I retrieved the Ethernet cord and booted up. He proved to me the problem was the ISP and taught me how to check of the problem in the future. ISP tech came and agree it was their problem and made repairs to their connections. Two year warranty on electronic device is outstanding. Never knew this brand before, but glad I found them. PS their device was the best priced by 70% on most brands to do the same cable modem. PPS - If something can go wrong in electronics, I can find it and I am very vocal in my criticism to businesses and not bashful with friends opinions.
5 out of 6 found this review helpful.
Don't rent your equipment
Posted by: lisaw from: on
I purchased this modem after reading the raving reviews. I purchased this modem as an alternative to paying Comcast every month for their equipment. Like the rest of the reviews say it works much better and pretty much pays for itself after a couple months! If you do use this you will need to contact your Internet provider to give the serial number info off your modem or else the equipment will not work. So glad I decided to purchase my own, I've not issues with it and it's super easy to setup.
4 out of 4 found this review helpful.
The Maserati of Modems
Posted by: CactusDawg from: Tucson, AZ on
I have used several different modems on my high-speed internet connection and this beats them all. Don’t waste your time with any other modem!
The difference is quite apparent with Net Flix, YouTube and other video services. It handles several streams at once; you can use your computer while watching Net Flix with no slow down. Previously, Net Flix would give me a “loading” message and the movie would stop. No more!
The modem comes in white. That was the only color BB had several weeks ago. I found it funny as the technically challenged would now be able to tell the modem from the router. Tech support: “The modem is the WHITE box.”
My only gripe is that it stands vertically. I put mine horizontally with the wall mount cutouts on the bottom not to block the ventilation holes.
12 out of 12 found this review helpful.
Superior Modem, Great Price
Posted by: Anya99 from: on
I picked this modem based on the recommendation of a friend who works professionally in tech assistance for a major corp. Wanted a modem just for the Internet that is compatible with Comcast. It's efficient, small, fast enough to surf the Web and watch streaming video and at this price, a much better deal than renting a modem from Comcast.
2 out of 2 found this review helpful.
If you have cable internet. Buy this.
Posted by: KanM from: on
This is hands down awesome. i purchase internet for 25mbps.
i used to get 25mbps and with this i get 30mbps from comcast in Hillsboro, Oregon.
IF YOU HAVE COMCAST YOU HAVE TO CALL THEM AND PROVIDE THEM YOUR MAC-ID TO USE. it's really easy though you should have no problem.
2 out of 2 found this review helpful.
Great overall modem
Posted by: mhljhjhl from: Orange County, CA on
I bought this to replace an old DOCSIS 2.0 modem I have. I settled on this after through searching and research. This is the top of the line modem on the market and the speeds prove it! Fast sustained speeds no hickups downloading YouTube videos like my previous modem, no waiting for things to load. The only flaw of this modem is the status LEDs, they are very bright, lighting up my office at night, which personally is not a big deal but could be if you keep your modem somewhere it could affect you, plus the connection light constantly flashes which is slightly annoying yet personally not a problem. If you are in the market for a cable modem look no further!!!!
13 out of 13 found this review helpful.
Posted by: samsonn25 from: on
Another great Motorola Arris product. Rated up to 360 Mb/s I have Comcast 150 Mb service and can get 150-170. The older modem that I replaced the 6121 usually only got about 135 Mb/s, even thought it is rated at 170 Mb/s . The only small thing I dont like are that the Blue lights are too bright.