Picture 1 of 3
Stock photo
Picture 1 of 3
Stock photo
Motorola SURFboard eXtreme (SB6121) 222.64 Mbps
GigaBuy7 (247)
100% positive feedback
Price:
US $3.00
ApproximatelyC $4.16
+ $20.86 shipping
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Condition:
- Buy It NowMotorola/Arris Surfboard Cable Modem SB6121 200 Series 172 MBPS
Oops! Looks like we're having trouble connecting to our server.
Refresh your browser window to try again.
About this product
Product Information
Enjoy lightning-fast broadband speed and safer web surfing with the Motorola SURFboard eXtreme (SB6121) 222.64 Mbps Modem from Arris. Thanks to a download speed of up to 160 Mbps in Docsis 3.0 mode, you can enjoy a range of Internet activities without getting frustrated about all the lag times and speed-related glitches. Using up to four channels, the cost-effective Arris Motorola SB6121 Surfboard Docsis 3.0 cable modem delivers on fast broadband speed for better user experience when playing online games, streaming HD videos, shopping, video conferencing, making high-quality free VOIP voice calls, downloading huge files, or running peer-to-peer networking applications. Enjoy your games, movies, and video calls all in real-time. Save money by conserving energy when your Motorola SB6121 surfboard Docsis 3.0 Extreme is not in use by switching on the power-saving mode. Set up is quick, easy, and hassle free. User-friendly diagnostics allows you to configure your modem correctly and check on net service disruptions. Ensure that your new cable modem supports DOCSIS 3.0, the current iteration of the Data Over Cable Service Interface Specification that governs how cable operators deliver high-speed Internet. You also need a cable modem that is compatible with the major cable ISPs in the U.S., including Time Warner, Comcast, Cox, and Charter. The Motorola SB6183 is compatible with nine of the ten U.S. cable Internet providers. The Arris Motorola SB6121 Motorola SURFboard DOCSIS 3.0 and SB6141 are both models that are rock-hard performers, with the SB6121 being the cheaper of the two. Both cable modems offer the kind of performance that finds favor with tech gurus and small business owners. The SB6121 is a master when it comes to Internet applications and fast transfer rate, which allows for faster Internet access. This model also features IPv6, which allows you to get to a larger number of newly emerging IP addresses. The SURFboard DOCSIS 3.0 woos the crowd with its high-performance technology, which allows for faster access to big data. The DOCSIS also gains high scores for its ability to handle strong traffic encryption, allowing for increased privacy and protection of your personal information while surfing and shopping online. Its cable compatibility makes for a hassle-free connection to your cable ISP, and it is compatible with Time Warner. The SURFboard model also features a 134.14 Mbps transfer rate, which allows faster web speed, while its DOCSIS 3.0 technology allows you to quickly read and write from your device. The Motorola SB6121 modem is a wired network adapter and does not offer wireless access. For that, you would need to connect the cable modem to a wireless router and adjust your network setup. You may consider purchasing the retail packaging that offers three products in one: a DOCSIS 3.0 Cable Modem, Dual-Band Concurrent 802.11ac Wi-Fi Access Point, and 2-Port Gigabit Ethernet Router. This works well with Linux, Mac, PC, and Unix computers. The Arris Motorola SB6121 SURFboard Docsis 3.0 cable modem is three times faster than wireless and has Wi-Fi speeds up to 1800 Mbps. The package offers preset Wi-Fi security amd energy-efficient Ethernet. The Motorola SB6121 modem continues to enjoy high scores in reviews for computers and accessories software.Product Identifiers
BrandMotorola
MPNSB6121
UPC0612572191798
ModelSURFboard eXtreme
eBay Product ID (ePID)112151470
Product Key Features
TypeCable
Dimensions
Depth1.65in
Height5.24in
Width5.24in
Additional Product Features
Data Transfer Rate222.64Mbps
PlatformM·A·C, Linux, PC Products, UNIX
EnclosureExternal
Hardware InterfaceRJ-45, Ethernet
Transmission LineCable
Network PortsRJ-45
Brand Websitehttp://www.motorola.com/Video-Solutions/US-EN/Products-and-Services/Voice-and-Data-Consumer-Premise-Equipment/DOCSIS-Modems-Gateways-and-eMTAs/Cable-Modems/SURFboard_SB6121_US-EN
All listings for this product
Ratings and Reviews
Most relevant reviews
- Mar 08, 2016
Compact size, Works fine
This modem arrived in thin packaging, no padding, no box, but included all necessary parts and nothing was damaged. The plastic housing looks lightly scratched all over as if it had been cleaned with a gritty cloth. But it works perfectly and was incredibly easy to set up. I called Time Warner to activate it and within a few minutes I was all set to return the leased modem and recoup the cost of this used unit in three months. To save money I switched to the slowest internet plan and have no problems streaming Netflix with the 1.5 mbps plan (note the decimal - that's one-and-a-half mbps, not fifteen) - For older people living alone on a limited income, buying a cheap used modem like this is a good investment.Verified purchase: YesCondition: Pre-owned
- Sep 16, 2015
Had to call Comcast to activate but it works great. Only issue was that power supply fell apart during shipping; 12V 1 Amp is generic enough. Happy.
The product is perfect for getting saving some green from Comcast rental fees. It will be many years before they roll-out DOCSIS 3.1, make it affordable enough after they do and available. So in the mean time, save money on your monthly bill. This one works great for the 50mb ish speeds.Verified purchase: YesCondition: Pre-owned
- May 10, 2017
If is what it is, and it does what it does.
The Motorola SB6121 is a reasonably small DOCSIS 3.0 cable modem. It can handle data rates up to a nominal 200Mb/s (actual 195Mb/s), and can work with most cable providers (check compatibility before buying). This model does not incorporate a router. Setup is simple - connect the cable cord, the Ethernet cord, and power and you're away. Setup with the cable company was simple - one phone call, read one number, and the new modem was working. One irritation with a cable modem (as opposed to a modem-router) is that if you connect a different computer/router/etc, you have to power cycle the modem. All in all, this has been a great deal for me, eliminating the modem rental and other fees . Now I just have to see if it lasts.Verified purchase: YesCondition: Pre-owned
- Nov 07, 2015
Very easy to use
The product is plug and play. Only thing to do is call Comcast and tell the numbers that are on the back of the modem. They asked me if I will be using a router to have it ready as well. So I connected during the process that took less tan a minute and it is working perfect. I was looking to the perfect match and most of the people recommended to use a router Netgear WNDR3700 that is very reliable and I can confirm this as well.Verified purchase: YesCondition: Pre-owned
- Dec 12, 2015
Great Modem, Cool.
Runs coolest of major brands (extends life). Has template for wall mounting of the not vented, right side. 4 channel download. Excellent for those who do not have the newer "super speeds". Have to reach around back to turn off, but same with competitors. Same as previous SB 6120 Model, Except lights are now on front panel, instead of front left corner. Motorola modems are now made by Arris. This modem has just reached the end of support, but there is the 2 year warranty, and a great modem.Verified purchase: YesCondition: New
- May 18, 2016
Surfboard sb6121 cable modem
Easy to setup for timewarner. Watch these videos before you disconnect your existing service. link deleted. Just search for timewarner activate modem to get the link. Follow the instructions of the videos and about 20 minutes later your all set. There is nothing to configure on the modem and firmware is pushed down by timewarner once your activated. Simple to use. Other reviews got faster speeds, but mine was basically the same. I replaced my previous modem because it was failing. This modem uses less electricity so that is a plus.Verified purchase: YesCondition: Pre-owned
- Jul 27, 2016
No problem with TWC connection. Been using for about a month without any issues.
Very easy to connect to the Time Warner Cable network. So glad to not have to pay $10 a month to rent one from TWC.Verified purchase: YesCondition: Pre-owned
- Jun 14, 2017
Great little modem
Bought this modem to replace my current modem SURFBOARD 5101U model, Currently have TWC/Spetrum ELP 2.0 speed based internet. After i received the modem by USPS I call and had it activated set up was a breeze and was up and running in 5 minutes. I really recommend the Surfboard modems that MOTOROLA/ARRIS has now ( IF you are on cable based internet in your area) Also saves you $5-$10 fee for rental off of the cable company TWC based spectrum has said they have done away with their fees. :)Verified purchase: YesCondition: Pre-owned
- Jun 02, 2017
Sweet!
Good connection and easy set up. You do need your cable provider to make any system changes. No user configurable settings.Verified purchase: YesCondition: Pre-owned
- Jan 03, 2017
No More Cable Rental Fees!
Very good quality, nice looking bright lights, may be intimidating mover, but cable customer service on phone can help walk you through it without charge- even though its not their product they are obligated to help if you are connected and not having service. .Make sure its the proper model for your cable company. Worked great for me with Time Warner and cut $7 a month! Had it a year now, no problems, very happy with it.Verified purchase: YesCondition: Pre-owned
