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Sb6121 in Computers For Sale

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$35.00   1 week ago
MOTOROLA SURFBOARD SB6121 DOCSIS 3.0 MODEM, FOR COMCAST, TIME WARNER, - $35 (Tucson)

WORKING MODEM SURFBOARD SB6121WITH POWER CABLE AND ETHERNET CABLEMOTOROLA SURFBOARD SB6121 DOCSIS 3.0 MODEM, FOR COMCAST, TIME WARNER, COX, CHARTERDescriptionThe Motorola SURFboard SB6121 is a cable modem intended for external use in computer systems. Dimensions for the unit are 1.7 inches wide by 5.2 inches deep by 5.2 inches high. Gigabit Ethernet is the interface type for the wired Motorola mod

$40.00   1 week ago
Like new Motorola Arris SB6121 Surfboard Modem - $40 (Arcata)

Like new, Motorola ARRIS SB6121 Modem. DOCSIS 3.0, IPv6, is compatible with Suddenlink and most other cable providers. I am including a 3 way splitter and cable as well. Please call or text $40 OBO, I need to sell ASAP.I will deliver if you pitch for gas.

$40.00   1 week ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem - $40 (DAYTON)

Do you have cable internet? Are you a Time Warner/Spectrum customer who is paying them $6.99 a month to rent a cable modem? PAY NO MORE!! This cable modem is guaranteed to work with Time Warner/Spectrum and you'll no longer have to rent it from them! $7 a month for a whole year is $84!! You can buy this for half the price and it will pay for itself in 6 months!https://www.amazon.com/SURFboard-SB61

$40.00   2 weeks ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Pac - $40 (Princeton, IL)

ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Packaging Works perfectly! all original items are included with it. I used it with Comcast/Xfinity but it is compatible with any ISP that uses DOCSIS 3.0 The protective film is still on the display.INCLUDED ITEMS Modem and AC/DC adapter original box, Asking $40 cash Text or call with questions at

$20.00   2 weeks ago
MOTOROLA SB6121 DOCSIS 3.0 CABLE MODEM - $20 (Sarasota)

Here is a motorola sb6121 docsis 3.0 cable modem. Works great with frontier/verizon high speed internet service

$20.00   1 month ago
Motorola Arris Cable Modem SB6121 - $20 (Summit)

DOCSIS 3.0 modem was in use on Comcast. Excellent condition. With power adapter. In box.

$10.00   1 month ago
Motorola SURFboard Modem (#SB6121) - $10 (Fargo, ND)

Selling a Motorola SURFboard DOCSIS 3.0 Modem (#SB6121). Was purchased new from best buy about a year ago. Haven't had any issues with it or experienced any downtime. Reason for selling is that this modem is not approved with Midcontinent and was required to upgrade. Original box and manuals are included as well as modem and power cable. asking $10 cashif interested, have any general questions, or

$20.00   1 month ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem - $20 (grimesland)

DOCSIS 3.0 certified, capable of up to 172 Mbps and upload speeds up to 131 Mbps based on Cable Internet Service ProviderSupports IPv4 and IPv6 networking, as well as Windows, Mac, and Linux computers10/100/1000Mbps Ethernet port to connect with router or computerRequires Cable Internet Service. Compatible with major U.S. Cable Providers. Contact your ISP to confirm compatibility. Front-panel LEDs

$39.00   1 month ago
Motorola SURFboard SB6121 DOCSIS 3.0 Cable Modem Works Properly - $39 (NORTH EAST)

Motorola SURFboard SB6121 DOCSIS 3.0 Cable Modem, WORKING WITH POWER SUPPLY AND ETHERNET CABLE, COMPATIBLE WITH COX, COMCAST/INFINITY, BRIGHT HOUSE, .Most importantly, it helped remove that silly $19 cable modem rental fee charged by my cable company. If you still rent your modem, I highly recommend purchasing this one as it will pay for itself in just a couple months. Compatible with MOST Major C

$20.00   2 months ago
Motorola Arris Cable Modem SB6121 - $20 (Summit)

DOCSIS 3.0 modem was in use on Comcast. Excellent condition. With power adapter. In box.

$30.00   2 months ago
NEW Motorola / Arris SURFboard Cable Modem 200 Series, Model SB6121 - $30 (Reno)

NEW Motorola / Arris SURFboard Cable Modem 200 Series, Model SB6121This new. Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.Compatible with Comcast, Time Warner, Cox, Charter, Bright House Networks and MOST Small Regional Cable Providers (NOT compatible with Verizon FiOS or AT&T U-verse). Requi

$40.00   2 months ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem - $40 (DAYTON)

Do you have cable internet? Are you a Time Warner/Spectrum customer who is paying them $6.99 a month to rent a cable modem? PAY NO MORE!! This cable modem is guaranteed to work with Time Warner/Spectrum and you'll no longer have to rent it from them! $7 a month for a whole year is $84!! You can buy this for half the price and it will pay for itself in 6 months!https://www.amazon.com/SURFboard-SB61

$22.00   2 months ago
Motorola Arris SB6121 SURFboard DOCSIS 3.0 High-Speed Cable Modem - $22 (wilmot / i10)

Motorola Arris SB6121 SURFboard DOCSIS 3.0 High-Speed Cable Modem in boxCALL OR TEXT AT

$50.00   2 months ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem for sale - $50 (Los Angeles)

I have an:ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem for sale.Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Compatible with Time Warner / Spectrum internet provider.Requires CABLE Internet Service, if not sure, call your internet service provider to confirm.Internet speeds based on your Cable providers service - up to 172 Mbps download and 131 Mbps upload. 4 Download

$40.00   3 months ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Pac - $40 (Princeton, IL)

Stop paying monthly rental fee for Comcast/Xfinity modem, buy your own ! ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Packaging Works perfectly! all original items are included with it. I used it with Comcast/Xfinity but it is compatible with any ISP that uses DOCSIS 3.0 The protective film is still on the display.INCLUDED ITEMS Modem and AC/DC adapter original box, Asking $4

$40.00   3 months ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Pac - $40 (Princeton, IL)

ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Packaging Works perfectly! all original items are included with it. I used it with Comcast/Xfinity but it is compatible with any ISP that uses DOCSIS 3.0 The protective film is still on the display.INCLUDED ITEMS Modem and AC/DC adapter original box, Asking $40 cash Text or call with questions at

$40.00   3 months ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Pac - $40 (Princeton, IL)

ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem Include Original Box/Packaging Works perfectly! all original items are included with it. I used it with Comcast/Xfinity but it is compatible with any ISP that uses DOCSIS 3.0 The protective film is still on the display.INCLUDED ITEMS Modem and AC/DC adapter original box, Asking $40 cash Text or call with questions at

$25.00   3 months ago
Arris Motorola SURFboard Modem SB6121 DOCSIS 3.0 - $25 (Niceville)

Used, but still have original box and paperwork.This modem only supports internet speeds upto 172mb. Before purchasing, be sure to check with your cable provider on the compatibility of this modem.

$60.00   4 months ago
ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem - $60 (University Village)

Used only a few months before I switched to Gigapower ATT. Includes box, instructions and AC adapter. Compatible with Comcast, Time Warner, Cox, Charter, Bright House Networks and MOST Small Regional Cable Providers (NOT compatible with Verizon FiOS or AT&T U-verse). Internet speeds based on your Cable providers service - up to 172 Mbps download and 131 Mbps upload. 4 Download and 4 Upload Cha

$28.00   4 months ago
Motorola Arris SB6121 SURFboard DOCSIS 3.0 High-Speed Cable Modem - $28 (wilmot / i10)

Motorola Arris SB6121 SURFboard DOCSIS 3.0 High-Speed Cable Modem in boxCALL OR TEXT AT


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Last Updated on: May 23, 2017
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