Customer Reviews
Piece of cake with Comcast
Didn't have to do anything other than connect it and call Comcast to activate. Took about 10 minutes. So far, very good. Read more
by Tarkus
Solid Docsis 3.0 Modem
It's no surprise that this Motorola SB6120 modem has been a solid performer for me. There's not really much to it. Read more
by Big Ron
super fast
I had read a lot of reviews and this one seem to be the best, I had a modem from charter comm. it was seven years old so I guess any modem would be better but anyway I was only... Read more
by Dana M. Black
For Comcast People
When considering this modem, I saw people from Comcast were having trouble.
I have Comcast and am in Arlington, Virginia. Read more
by Matt Braynard
Awesome.... Really...
This is my first review after nearly so many purchases in amazon, I purchased this modem after my research on Amazon ... (where else do we find options to research well. Read more
ago by Praveen
Great Deal...Easy Installation
This was very easy to setup. All I had to do was unpack, call Comcast, give them the ID numbers on the modem, and hook up a few wires. Total time of about 10 minutes. Read more
by MartyMoose
Riding the big wave with the Surfboard
Nothing to complain about with this modem. Worked out of the box and was easy to set up. The only thing missing is some sort of status page to show the speed settings.
Scott A. Bartine
made my internet faster
My provider Cox supports DOCSIS 3.0 and I was able to use this modem. While the setup was a little painful with the provider, it was not the fault of the modem. Read more
by Kent
bought to replace rental modem
I bought this to replace my cable rental modem and on the cable company's website they recommended docsis 3.0.
well apparently i didn't need docsis 3. Read more
by ImBZppl
Good product
The product serves its purpose. Even a non technical person like me could set up in very very short time.
by Vishy
This review is from: Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem (Electronics)
As I understand it, this is a great modem to use if you have a very expensive, extremely high speed internet package. The reason for this is that it has bonded channels technology that enables you to get more bandwidth (at high speeds) than the Motorola Surfboard 5120 or 5101. So if you have the top of the line internet package, and a very fast computer, and if the cable internet in your area supports DOCSIS 3.0, this thing could work screaming fast for you.
I do not have screaming fast internet, although my computer is pretty bleeding fast. I can't afford that kind of cost for a monthly subscription, because it is a constant and forever drain of a lot of money, and I don't earn that much money where I can do that.
I am located in the Phoenix, Arizona area, and have the $40/month Preferred internet package. My downstream bandwidth varies a lot by the time of day, it ranges between 13Mbps all the way up to about 23Mbps when almost everyone else is in bed sleeping.
My upstream bandwidth is capped real low, as with most consumer internet packages, so it hardly varies at all. It's almost always the same, at about 1Mbps.
If you want an accurate test of your internet bandwidth, do not use the main bandwidth testing sites. Their tests are way too short in duration and give you an extremely exaggerated notion of your top speeds. Go to testmy dot net and use the largest size tests they will allow you to.
Before purchasing this modem from an unnamed extremely large local retailer, I had read lots and lots of reviews saying that this modem dramatically improved the speed of relatively slow connections. I tested my bandwidth both before and after very thoroughly, both upstream and down. In the before part of my tests, I was using a Motorola Surfboard 5120. I saw absolutely no significant difference in either my upstream or downstream speeds after switching in the newer model. The reason this happened is because the 6120 is designed with the bonded channel DOCSIS 3.0 technology that provides you with more bandwidth *in very high speed applications only*.
So, if you have a bleeding fast internet connection, and your internet service provider supports DOCSIS 3.0 in your area, then you could see quite a large improvement in your bandwidth from this modem, according to everything I have read and heard. However, if like me, you cannot afford that speed of connection, you would be much better off saving your money and either keeping your Motorola Surboard 5120 or 5101, or getting one of those instead, since they are less expensive.
