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Motorola SURFboard SB6121 Cable Modem

Overall Rating Rating 4.5  |  12 reviews  |  Write a review
Today $83.62
Save $46.86 (36%)
Item #: 13682464
    Motorola SURFboard SB6121 Cable Modem - 1 x Network (RJ-45) - F-type - 222.5 Mbps Broadband - Gigabit Ethernet, Fast Ethernet - Desktop...more

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    Your customers want high-bandwidth data and multimedia services. Our easy-to-use SB6121 SURFboard eXtreme Cable Modem helps you deliver. Harnessing the power of DOCSIS 3.0, the SB6121 enables channel bonding of up to four downstream channels and four upstream channels-so you can offer your customers advanced multimedia services with data rates of more than 100 Mbps in each direction.

    Strengthen your broadband leadership. Count on the Motorola SB6121 to help you deliver innovative, ultra-broadband services to your premium customers.


  • Manufacturer: Motorola, Inc
  • Manufacturer Part Number: 575319-019-00
  • Manufacturer Website Address: http://www.motorola.com/us
  • Brand Name: Motorola
  • Product Line: SURFboard
  • Product Model: SB6121
  • Product Name: SURFboard SB6121 Cable Modem
  • Product Type: Cable Modem
  • Modulation: QPSK
  • Host Interface: RJ-45
  • F-type: Yes
  • Network (RJ-45): Yes
  • Number of Network (RJ-45) Ports: 1
  • Broadband Transmission Speed: 222.5 Mbps
  • Ethernet Technology: Gigabit Ethernet
  • Form Factor: Desktop
  • Height: 5.2"
  • Width: 5.2"
  • Depth: 1.7"
  • Weight (Approximate): 1.35 lb
  • Green Compliant: Yes
  • Green Compliance Certificate/Authority: RoHS
Dimensions:
7.2x9.7x2.8
Model No:
575319-019-00
Brand: Motorola
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General Information
Manufacturer:
Motorola, Inc
Manufacturer Part Number:
575319-019-00
Manufacturer Website Address:
http://www.motorola.com/us
Brand Name:
Motorola
Product Line:
SURFboard
Product Model:
SB6121
Product Name:
SURFboard SB6121 Cable Modem
Product Type:
Cable Modem

Showing 5 most helpful reviews on this product.

  • 5 Stars 10
  • 4 Stars 0
  • 3 Stars 1
  • 2 Stars 0
  • 1 Stars 1
  • Does what it is suppose to do....

    I'm using the Motorola SURFboard SB6121 Cable Modem instead of renting a cable modem from Comcast (yes, this is an Comcast approved modem). My speeds from Comcast are the same if not a little better with this modem.

    • How did the image on site compare with the actual product? Correct
    • Was the product free of any manufacturer defects? Yes
    • Please tell us about the quality of the product. Perfect Retail Quality
    • Would you recommend this to a friend? Yes
  • Motorola SURFboard SB6121 Cable Modem

    So far so good. We have been using it for a week and nothing wrong so far !! I do feel like it works faster than the one we had from the company !!! Thanks Overstock !!

    • How did the image on site compare with the actual product? Much better
    • Was the product free of any manufacturer defects? yes
    • Please tell us about the quality of the product. 5 stars
    • Would you recommend this to a friend? Yes
  • Comcast compatible

    What can I say? Easy to install, took just a few minutes on the phone with Comcast to get it activated and saves me rental fees. I'm happy.

    • How did the image on site compare with the actual product? looks the same to me!
    • Was the product free of any manufacturer defects? so far, so good
    • Please tell us about the quality of the product. easy to install and is working
    • Would you recommend this to a friend? Yes
  • Great modem, super fast

    I just love this super fast modem. Its been a few months now since i got it and its totally dependable and super fast. Its been working day and night with no problems since I recieved it...super fast with high response. I highly recommend this modem to anyone looking for new technology. Works great.

    • How did the image on site compare with the actual product? This modem looks just like the picture
    • Was the product free of any manufacturer defects? Yes totally working great
    • Please tell us about the quality of the product. Super fantastic speed and quality, great connection
    • Would you recommend this to a friend? Yes

    trueawe from Pembroke Pines, FL, Mar 4, 2012

    Flag As Inappropriate
  • Cable Modem

    Modem works as advertised at great price. Very please with this purchase.

    • How did the image on site compare with the actual product? Exact
    • Was the product free of any manufacturer defects? Yes
    • Please tell us about the quality of the product. Works great.
    • Would you recommend this to a friend? Yes
View All Most Helpful Reviews
  • I thought what I had was fast...this is SUPER fast

    My modem I was renting from the cable company at $60/year at 10 years I thought was OK at 36 Mbps as far as speed, but today with more WiFi devices in your home this 160 Mbps is super FAST. The router lets you know when it is operating in Ethernet or Fast Ethernet mode OR in high-speed Gigabit Ethernet mode. I have seen a HUGE difference in speed alone uploading my data into the cloud.

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    • Would you recommend this to a friend? Yes
    Flag

    maddisondakota from Cary, NC, May 3, 2014

  • Motorola SURFboard SB6121 Cable Modem

    Bad unit. Asking to return it. Return takes too long. I need to have a replacement sooner than 10+ days.

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    Poor
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    • Would you recommend this to a friend? No
    Flag

    jeffares from FLA, Dec 14, 2013

  • Stopped paying for rental modem

    At a lower price than retail, this has turned out to be a great buy. I think the data transfer is quicker than the rental unit. A wireless router needs to be purchased separately. This is an approved device for Time Warner Cable.

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    • Would you recommend this to a friend? Yes
    Flag

    rjplmsprg from Palm Springs area, Nov 5, 2013

  • i did not need this modem

    I bought this modem thinking I was going to need it.

    • How did the image on site compare with the actual product? it was great
    • Was the product free of any manufacturer defects? yes
    • Please tell us about the quality of the product. i did not use it
    • Would you recommend this to a friend? Yes
    Flag

    williamv from oakdale pa., Aug 29, 2012

  • Faster Cable Modem

    Glad I purchased this cable modem - lowest price I could find and was shipped immediately! Works way FASTER than my previous modem - first time I buy this Motorola. I did check various reviews from other sellers - and they all agreed this is a great product. And no problems at all w/installation.

    • How did the image on site compare with the actual product? Just like picture
    • Was the product free of any manufacturer defects? Yes
    • Please tell us about the quality of the product. Great quality
    • Would you recommend this to a friend? Yes
    Flag

    frugaldetective from Chicago, Jan 20, 2012

View All Most Recent Reviews

Product Q&A

Ask a Question

dose this work with Mediacom? toaddie on Jan 13, 2014
Subscribe to Answers
Answer This Question

Hello, the Motorola SURFboard SB6121 Cable Modem should work with Mediacom without problem. If you have any additional questions please feel free to let us know. Thank you for shopping with us! overstockcustomercare1 on Jan 14, 2014
 
 

does this model work with Cox ? tfazz on Dec 31, 2013
Subscribe to Answers
Answer This Question

Hello tfazz, the Motorola SURFboard SB6121 Cable Modem will work with Cox. Please feel free to contact us again with any further questions. Thank you for shopping with us! overstockcustomercare1 on Jan 2, 2014
 
Works with Cox. I just had to call and refresh the signal. greendad01sm on Jan 10, 2014
 
 

what comes with this modem? Cord? battery backup? thresher593 on Aug 24, 2013
Subscribe to Answers
Answer This Question

Hello thresher593, The Motorola SURFboard SB6121 cable modem does not Contain a battery but it does come with the cord. Please feel free to contact us again with any further questions. Thank you for shopping with us! overstockcustomercare1 on Aug 27, 2013
 
 

is this Motorola SB6121 cable modem sold at O.co a new modem or used/refurbished? ivoco on Apr 9, 2013
Subscribe to Answers
Answer This Question

Thank you for your inquiry regarding the Motorola SURFboard SB6121 Cable Modem. This is a new item. I hope this information helps you. overstockcustomercare1 on Apr 15, 2013
 
 

do you still need a router for wireless or for use with comcast?  on Jul 18, 2012
Subscribe to Answers
Answer This Question

Yes, you need a router for wireless services. overstockcustomercare1 on Jul 19, 2012
 
 

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