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Product Details
- Enhanced security: supports Advanced Encryption Services (AES) traffic encryption
- SB6121 is compatible with Windows, Macintosh, and UNIX computers makes the SB6121 a great choice.
- SB-6121 is 100% New from Motorola and complete with power adapter and Cat5 cable
- SB6121 offers innovative, high-bandwidth data and multimedia services to customers
- SB6121 is DOCSIS 3.0 certified & backward-compatible to DOCSIS 1.0/2.0. Plug & Play
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Customer Review
A strong performer with up-to-date features
Motorola's SB6121 cable modem is one of the best cable modems available on the market right now, if not THE best. It is a full DOCSIS-3.0 modem, but also fully backwards compatible with DOCSIS 2.0 and all the way back to DOCSIS 1.0. In short, it should work on any cable system. It is future-ready with IPv6 support built in.I bought the SB6121 to replace a D-Link DCM202 which had started randomly dropping the connection several times a week, sometimes multiple times a day. Installation is trouble-free; just connect the cables and notify your cable company. (Have the MAC address from the label on the bottom of the modem handy when you call.) Many cable users report speed gains on updating to a DOCSIS 3.0 modem; I'm no exception -- my download speed went from 11.5Mbps to 12.8Mbps, and my upload speed increased by 50% from 960Kbps to 1.5Mbps.Interface-wise, there's not a lot to say. The Motorola SB6121's colored graphical-icon LED indicators are much easier...
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March 22, 2012
(Gilford, NH, USA) | Helpful Votes: 20 | Rating: 5
Same modem at a lower price!
I was wary to buy this modem from this seller because it had no reviews and it wouldn't come in retail packaging. After convincing myself that it was the same one as listed elsewhere for more, I took the plunge and have been very happy with the modem. The installation for this modem, as with all cable modems, is exceedingly easy. The sales rep at Comcast that I spoke to said that they could only guarantee me 12 Mbps service on my plan, but that I was allowed up to 20 Mbps. She said this was because I am in a high rise and that there are many tenants also using the same cable feed for Internet. I am happy to say that with this Docsis 3.0 modem, I am bonding 4 channels and getting over 22 Mbps down and over 4 Mpbs up which is plenty for a vacation spot. I highly recommend this modem and you shouldn't hesitate to buy it here and save a couple bucks.
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March 21, 2012
| Helpful Votes: 17 | Rating: 5
Fast and Comcast compatible
I decided to buy my own modem instead of renting the lower-end model from Comcast for $7/month. This has DOCSIS 3.0, so it supports higher speeds than the DOCSIS 2.0 Comcast rented me. My speeds increased from 18Mbps to 24Mbps by just installing the new modem. I just called Comcast, gave them the model # and serial/MAC, and they set it up over the phone. The seller shipped the item very quickly too!
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March 29, 2012
| Helpful Votes: 10 | Rating: 5
Product Description
Utilizing the power of DOCSIS 3.0, the SB6121 enables channel bonding of up to four downstream channels and four upstream channels, which allows
an operator to offer their customers advanced multimedia services with data rates of well over 100 Mbps in each direction.
The Motorola SB6121 is backwards compatible to DOCSIS 1.0, 1.1 and 2.0. The SB-6121 also supports both IPv4 and IPv6, Advanced Encryption Services, and all other DOCSIS
3.0 standards. The Motorola SB6121 features a 10/100/1000Base-T Ethernet
(RJ-45) port, as well as intuitive, easy-to-read front-panel operational status LEDs.
With Motorola's cable modems, high-speed Internet
access is always at your fingertips - always on and always connected. The SB6121 is the ideal competitive solution for the high-end residential user, the small home office owner, and the medium to
large business enterprise.
The SB6121 is a data-only modem and does not support telephony services. The SB6121 is not a wireless modem, but can be connected to an external wireless router. Top to learn more