Picture 1 of 2

Have one to sell?

Motorola Surfboard SB6121 DOCSIS 3.0 Cable Modem

Name: Motorola Surfboard SB6121 DOCSIS 3.0 Cable Modem
Brand: Motorola
Price: 6.99 USD
Availability: InStock
Rating: 4.62 (374 reviews)

My Supply Stop

(815)

US $6.99

or Best Offer

Condition:

Used

Additional service available

Shipping:

US $12.50 Expedited Shipping. See detailsfor shipping

Located in: Owings Mills, Maryland, United States

Delivery:

Estimated between Fri, Jun 7 and Mon, Jun 10 to 43230

Returns:

Seller does not accept returns. See details- for more information about returns

Payments:

Special financing available. See terms and apply now- for PayPal Credit, opens in a new window or tab

Earn up to 5x points when you use your eBay Mastercard®. Learn moreabout earning points with eBay Mastercard

Shop with confidence

eBay Money Back Guarantee

Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab

Report this item - opens in new window or tab

Seller assumes all responsibility for this listing.

eBay item number:154036584760

Last updated on Mar 20, 2024 16:07:39 PDTView all revisionsView all revisions

Item specifics

Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...

Maximum Downstream Data Rate: 160 Mbps

Maximum LAN Data Rate: 1000 Mbps

Color: Black

Ports: Ethernet (RJ-45)

MPN: 575319-019-00

To Fit: PC

Brand: Motorola

DOCSIS Standard: DOCSIS 3.0

Type: Cable

Modem Device Type: Cable Modems & Routers

Model: SB6121

Connectivity: Wired-Ethernet (RJ-45)

Features: Unlocked

Carrier: Unlocked

Number of LAN Ports: 2

Item description from the seller

Seller assumes all responsibility for this listing.

eBay item number:154036584760

Last updated on Mar 20, 2024 16:07:39 PDTView all revisionsView all revisions

Shipping and handling

Item location:

Owings Mills, Maryland, United States

Ships to:

Afghanistan, Albania, Algeria, Andorra, Angola, Anguilla, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan Republic, Bahamas, Bahrain, Bangladesh, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei Darussalam, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Cape Verde Islands, Cayman Islands, Central African Republic, Chad, Chile, Colombia, Costa Rica, Cyprus, Czech Republic, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Denmark, Djibouti, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, Gabon Republic, Gambia, Georgia, Ghana, Gibraltar, Greece, Greenland, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Mauritania, Mauritius, Mexico, Moldova, Monaco, Mongolia, Montenegro, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, Norway, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Republic of Croatia, Republic of the Congo, Romania, Rwanda, Saint Kitts-Nevis, Saint Lucia, Saint Vincent and the Grenadines, San Marino, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, South Africa, South Korea, Spain, Sri Lanka, Suriname, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Turks and Caicos Islands, Uganda, United Arab Emirates, United States, Uruguay, Uzbekistan, Vanuatu, Vatican City State, Vietnam, Wallis and Futuna, Western Samoa, Yemen, Zambia, Zimbabwe

Excludes:

Barbados, French Guiana, French Polynesia, Guadeloupe, Libya, Martinique, New Caledonia, Reunion, Russian Federation, Ukraine, Venezuela

Change country:

ZIP Code:

Shipping and handling	To	Service	Delivery*See Delivery notes
US $12.50	United States	Expedited Shipping (USPS Priority Mail®)	Estimated between Fri, Jun 7 and Mon, Jun 10 to 43230

Notes - Delivery *Estimated delivery dates include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.

Handling time

Will usually ship within 3 business days of receiving cleared payment.

Taxes

Taxes may be applicable at checkout. Learn moreLearn more about paying tax on eBay purchases.

Return policy

Return policy details
Seller does not accept returns

Refer to eBay Return policyopens in a new tab or window for more details. You are covered by the eBay Money Back Guaranteeopens in a new tab or window if you receive an item that is not as described in the listing.

Payment details

Payment methods

Special financing available

Select PayPal Credit at checkout to have the option to pay over time.

Qualifying purchases could enjoy No Interest if paid in full in 6 months on purchases of $99 or more. Other offers may also be available.

Interest will be charged to your account from the purchase date if the balance is not paid in full within 6 months. Minimum monthly payments are required. Subject to credit approval. See terms- for PayPal Credit, opens in a new window or tab

The PayPal Credit account is issued by Synchrony Bank.

My Supply Stop

98.6% positive feedback

2.7K items sold

Visit store Contact

Joined May 2017

Usually responds within 24 hours

Detailed seller ratings

Average for the last 12 months

Accurate description

4.9

Reasonable shipping cost

4.6

Shipping speed

4.9

Communication

5.0

Popular categories from this store

See allcategories

CollectiblesCraftsClothing, Shoes & AccessoriesToys & HobbiesVideo Games & ConsolesDolls & BearsPet SuppliesBooks & MagazinesBusiness & Industrial

Seller feedback (795)

l***l (143)- Feedback left by buyer.

Past month

Verified purchase

Excellent communication and negotiation. Item as and delivered as promised

2009 A Cat and Mouse Christmas Hallmark Ornament Tom and Jerry (#155920215608)

e***n (530)- Feedback left by buyer.

Past month

Verified purchase

Received exactly when expected , box was a bit crushed due to transportation but everything is OK.All up and running , some of the accessories never used - very pleased 👍

Thinkware F750 HD 1080p WIFI GPS Dash Cam (#156155754334)

h***i (6)- Feedback left by buyer.

Past 6 months

Verified purchase

The item was received exactly as it was presented. It was shipped the same day I purchased it, and I couldn't be happier with the entire experience. I highly recommend this seller!

Brother Personal Plain Paper Office Fax Machine Fax-575 Copier Phone (#156130453365)

See all feedback

Product ratings and reviews

Learn more

Write a review

4.6

374 product ratings

302 users rated this 5 out of 5 stars
42 users rated this 4 out of 5 stars
5 users rated this 3 out of 5 stars
10 users rated this 2 out of 5 stars
15 users rated this 1 out of 5 stars

Easy to set up

Good value

Performs well

Most relevant reviews

See all 250 reviews

by wcshamilton
Jul 14, 2017Top favorable review
SB6121 PREMOD Forceware v1.4b-mod2
This is a review of the Motorola SB6121 PREMOD w/Forceware cable modem. If you are looking for one on a stock SB6121, look elsewhere. This is a totally different beast, and NOTHING will work for you. With that out of the way: It works great for what I wanted. After reading and reading, and reading some ore, I hooked it up, changed a few parameters to let it connect, and success! Nice and fast, most options are fairly easy to understand, and it works. Make sure the "Start Mode" is set to "Online", "Tuner CFG" to MT2170, and the "PGA Type" to MT1570. If your system uses certs, READ ALOT. There are quite a few How-To's out on the Web. A negative point: It can take awhile for the modem to reboot, and then foe your router to actually get it's DHCP address/etc from the modem, and actually ... This is a review of the Motorola SB6121 PREMOD w/Forceware cable modem. If you are looking for one on a stock SB6121, look elsewhere. This is a totally different beast, and NOTHING will work for you. With that out of the way: It works great for what I wanted. After reading and reading, and reading some ore, I hooked it up, changed a few parameters to let it connect, and success! Nice and fast, most options are fairly easy to understand, and it works. Make sure the "Start Mode" is set to "Online", "Tuner CFG" to MT2170, and the "PGA Type" to MT1570. If your system uses certs, READ ALOT. There are quite a few How-To's out on the Web. A negative point: It can take awhile for the modem to reboot, and then foe your router to actually get it's DHCP address/etc from the modem, and actually connect to the internet. Just be patient. NO, I'M NOT AN EXPERT ON THIS FIRMWARE. Don't ask me "How do I...". I'll ignore them. You have to determine if this modem is for you, and how to get it to work. In my case, I've used alot of SB51XX Premod modems before, so I knew what will work, and what won't for my cable system. READ AND LEARN. In my case, I could use this one to substitute for my subbed modem, and, using the stock configuration file, have everything humming along nicely. As far as a DOCSIS 3.0 Modem goes, it works. There are faster and more feature rich models out there (some premodded, some not), but for me and my situation, this one works wonderful.
Verified purchase: YesCondition: Pre-OwnedSold by: orangecountydeals
by josephfernadez1122
Dec 08, 2015
You get what you pay for
I decided to choose this product rather than the faster modem, the SB6121 due to wanting to save a buck or two and because I live in a 1 bedroom apartment. The internet I receive is fast, adequate when running through the cables, obviously less so through wifi. All in all I appreciate the modem and it's usefulness. It was easy to set up and has been great thus far.
Verified purchase: YesCondition: Pre-OwnedSold by: p70yuOqQTn2@Deleted
by ksvitale
Apr 06, 2016
Older model but still supported
I purchased this product to be used on COMCAST. The first thing the installation tech said was that it was marked as "end of life", which meant that COMCAST would stop supporting it shortly and I would have to purchase another soon. This concerned me but upon a further conversation with a COMCAST telephone-support tech, I was told that it just meant that COMCAST was no longer selling this model and would not offer tech support for it. Having said all that, the unit is DOCSIS 3.0 compatible and should work up to 170 mbps. I am only using this modem with 10 mbps service whereas COMCAST is offering up to 2 gbps. If you are only planning to use this unit up to 170 mbps service then this unit is fine. Peace and blessings.I purchased this product to be used on COMCAST. The first thing the installation tech said was that it was marked as "end of life", which meant that COMCAST would stop supporting it shortly and I would have to purchase another soon. This concerned me but upon a further conversation with a COMCAST telephone-support tech, I was told that it just meant that COMCAST was no longer selling this model and would not offer tech support for it. Having said all that, the unit is DOCSIS 3.0 compatible and should work up to 170 mbps. I am only using this modem with 10 mbps service whereas COMCAST is offering up to 2 gbps. If you are only planning to use this unit up to 170 mbps service then this unit is fine. Peace and blessings.
Verified purchase: YesCondition: Pre-OwnedSold by: us_auctions4u
by charl.owens
Oct 29, 2015
Cable Modem SB6121
Needed faster internet and cable was the only option. Cable company was charging a rental fee but gave options for me to purchase my own cable modem. Bought this used on Ebay and works great. Very happy with the purchase.
Verified purchase: YesCondition: Pre-OwnedSold by: jeremy289er
by myidissecret
Sep 02, 2015
Good modem. Happy with purchase so far.
I purchased the modem because (1) my previous one was acting up - dropping access to the internet sporadically, and (2) the SB6121 would support higher speeds should I decide to upgrade my plan in the future. So far, the modem has been solid (I like the design - heat can dissipate well through the honeycomb shell). I rated it Good because I have utilized the modem for less than 1 year.

Shop by category

Picture 1 of 2

Motorola Surfboard SB6121 DOCSIS 3.0 Cable Modem

Additional service available

Shop with confidence

Item specifics

Item description from the seller

Shipping and handling

Return policy

Payment details

My Supply Stop

Detailed seller ratings

Average for the last 12 months

Popular categories from this store

Seller feedback (795)

Product ratings and reviews

Most relevant reviews

SB6121 PREMOD Forceware v1.4b-mod2

You get what you pay for

Older model but still supported

Cable Modem SB6121

Good modem. Happy with purchase so far.

More to explore :