20 Best Cable Modem Motorola Sb6121 [2024]

Are you looking for the best Cable Modem Motorola Sb6121? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Cable Modem Motorola Sb6121.

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1 ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem -Retail Packaging-Black ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem -Retail Packaging-Black
2 motorola Surfboard SB6121 Cable Modem (Renewed) motorola Surfboard SB6121 Cable Modem (Renewed)
3 Motorola Surfboard SB6141 DOCSIS 3.0 High-Speed Cable Modem- Black (OEM Brown Box) Motorola Surfboard SB6141 DOCSIS 3.0 High-Speed Cable Modem- Black (OEM Brown Box)
4 motorola Surfboard SB6121 Cable Modem motorola Surfboard SB6121 Cable Modem
5 T-Power 12v AC DC Adapter Compatible with Comcast Xfinity Motorola Surfboard SBG6700AC SBG6580... T-Power 12v AC DC Adapter Compatible with Comcast Xfinity Motorola Surfboard SBG6700AC SBG6580...
6 ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black
7 T-Power 12V (6.6ft) Ac Adapter Compatible with NETGEAR & Motorola Arris Surfboard DOCSIS Cable Modem... T-Power 12V (6.6ft) Ac Adapter Compatible with NETGEAR & Motorola Arris Surfboard DOCSIS Cable...
8 TPLTECH Router Adapter Replacement for Comcast Xfinity Motorola/Arris Surfboard Netgear Asus TP-Link... TPLTECH Router Adapter Replacement for Comcast Xfinity Motorola/Arris Surfboard Netgear Asus...
9 12V AC Adapter Power Supply for Motorola Surfboard SB6141 SB6121 SB6120 SBG6580 SBG6580-2... 12V AC Adapter Power Supply for Motorola Surfboard SB6141 SB6121 SB6120 SBG6580 SBG6580-2...
10 AC Adapter for Motorola Surfboard SB6121 SB6141 SB6180 Cable Modem Power Supply AC Adapter for Motorola Surfboard SB6121 SB6141 SB6180 Cable Modem Power Supply
11 Generic Compatible Replacement AC Adapter Charger for Motorola Surfboard SB6121 SB6141 SB6180 Cable... Generic Compatible Replacement AC Adapter Charger for Motorola Surfboard SB6121 SB6141 SB6180...
12 Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast... Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for...
13 Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and... Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and...
14 Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band... Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual...
15 ARRIS SURFboard SB6190 DOCSIS 3.0 32 x 8 Gigabit Cable Modem | Comcast Xfinity, Cox, Spectrum | 1... ARRIS SURFboard SB6190 DOCSIS 3.0 32 x 8 Gigabit Cable Modem | Comcast Xfinity, Cox, Spectrum | 1...
16 Slim Pro MicroUSB Cable Works for Motorola XT860 4G is Fast Data and Charging Speeds! Slim Pro MicroUSB Cable Works for Motorola XT860 4G is Fast Data and Charging Speeds!
17 ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem | Approved for Comcast Xfinity, Cox,... ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem | Approved for Comcast Xfinity, Cox,...
18 ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, Cox, Charter Spectrum,... ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, Cox, Charter...
19 Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power... Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power...
20 Motorola MG7550 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox, Charter... Motorola MG7550 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox,...
Bestseller No. 1
ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem -Retail Packaging-Black
  • Compatible with Time Warner Cable, Charter, Cox, Cablevision, and more
  • Not compatible with Verizon FiOS or AT&T U-verse, no longer approved by Comcast Xfinity
  • Requires Cable Iternet Service, if not sure your provider is CABLE call them to confirm
  • BROWN BOX models NOT VALID for this item when sold as New, should report to Amazon immediately and RETURN to Seller
  • Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
Bestseller No. 2
motorola Surfboard SB6121 Cable Modem (Renewed)
  • This refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning,...
Bestseller No. 3
Motorola Surfboard SB6141 DOCSIS 3.0 High-Speed Cable Modem- Black (OEM Brown Box)
  • 10/100/1000 Mbps Ethernet port to connect with router or computer
  • DOCSIS 3.0 certified, capable of up to 343 Mbps and upload speeds up to 131 Mbps based on Cable provider service
  • Compatible with all major CABLE providers like Comcast/Xfinity, Cox, Charter, Time Warner, Mediacom, Bright House. Call your ISP to verify...
  • Compatible with Windows, Macintosh and UNIX computers
  • Front-panel LEDs indicate status and simplify troubleshooting
SaleBestseller No. 4
motorola Surfboard SB6121 Cable Modem
  • This refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning,...
SaleBestseller No. 5
T-Power 12v AC DC Adapter Compatible with Comcast Xfinity Motorola Surfboard SBG6700AC SBG6580...
  • T-Power - manufactured with Brand-new Input Voltage Range: AC 100V - 240V (12V )
  • Compatible Models: Motorola ARRIS SURFboard SB6190 SB6183 Sb5100 ,Comcast Xfinity Motorola Surfboard ARRIS SURFboard SBG6700AC SBG6700-AC SBG6580...
  • Belkin Wireless Router N150 N300 N450 N600 N750; Netgear N150 N600 N300; ,, MOTOROLA 579765-003 2247-N8 ADSL 2,2+ Wireless-N Modem Gateway - Black ,,...
  • Motorola SB6120 Cable Modem SURFboard eXtreme SBG6580 SURFboard Wireless Cable Modem Gateway Ethernet SBG901 556315-005-00 SURFboard Gateway DOCSIS...
Bestseller No. 6
ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black
  • This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day...
  • Requires CABLE Internet Service, if not sure your provider is CABLE call them to confirm. Does NOT work with Charter cable provider.
  • Compatible with MOST Major CABLE providers like Comcast/Xfinity, Cox, Time Warner, Mediacom, Bright House.
  • Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
  • Internet download speeds up to 172 Mbps and upload speeds up to 131 Mbps based on your Cable provider service. Good for streaming Video and gaming on...
Bestseller No. 7
T-Power 12V (6.6ft) Ac Adapter Compatible with NETGEAR & Motorola Arris Surfboard DOCSIS Cable Modem...
  • T-Power - manufactured with the highest quality materials , POWER SPECS : Input Voltage Range: AC 100V - 240V , Power: 12V 2A
  • Compatible Models: NETGEAR Nighthawk X4 R7500 R7000 C3000 EX6200 AC2350 AC1900 N300 FVS318 GS108 Smart Extender Router , NETGEAR CM400 CM500 CM600...
  • Motorola 16x4 Cable Modem, Model MB7420 , MB7420-10 , MB7420-10-W , Motorola Surfboard SB6120 SB6121 SB6141 SB6180 SBG6580 SBG901 900 Cable Modem...
  • AD898F20 PN: DSA-20P-10, 332-10011-01 , 332-10613-01 DSA-0151F-12 , Netgear DGN2200 N 300 Router, DSA-20P-10 332-10011-01 DSA-0151F-12 , NetGear...
  • U.S. Robotics USR3453C Courier 56K Business Modem ; USR4000 Call Director ; USR5686G Wireless Broadband Router DSL Cable Modem , Compatible With...
Bestseller No. 8
TPLTECH Router Adapter Replacement for Comcast Xfinity Motorola/Arris Surfboard Netgear Asus TP-Link...
  • [Compatibility] 12V 2A DC Power Supply Adapter Compatible with Netgear, Linksys, Asus, Motorola, TP-Link, Motorola/Arris Surfboard Docsis Cable Modem...
  • [Parameters] Input:100-240V, Output:12V 2A. Intelligent Circuit Design Always Protect Devices and Charger from Over-Charged/Current/Voltage or Short...
  • [Package Included] 12V 2A 24W AC TO DC Adapter x 1. Different Plugs Meet More Choices to Small Digital Devices in Daily Life.
  • [Safety Certified] UL/CE/FCC/RoHS Certified. Build in Dynamic IC, Charger IC & Power Fuse for Short Circuit, Over Voltage Protection, Over Temperature...
  • [After-Sales] 30 days money back guarantee, 12-month warranty free replacement. Any question please e-mail us, We will reply back within 24h.
Bestseller No. 9
12V AC Adapter Power Supply for Motorola Surfboard SB6141 SB6121 SB6120 SBG6580 SBG6580-2...
  • HZPOWEN products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications.
  • Compatible with Comcast Xfinity Motorola Surfboard ARRIS SURFboard SBG6700AC SBG6700-AC SBG6580 SBG6580-G228 (570763-006-00)
  • Compatible with Belkin Wireless Router N150 N300 N450 N600 N750; Netgear N150 N600 N300; Compatible with MOTOROLA 579765-003 2247-N8 ADSL 2/2+...
  • Compatible with Motorola SB6120 Cable Modem SURFboard eXtreme SBG6580 SURFboard Wireless Cable Modem Gateway Ethernet SBG901 556315-005-00 SURFboard...
  • WARRANTY: 30 Days Refund - 24 Months Exchange
Bestseller No. 10
AC Adapter for Motorola Surfboard SB6121 SB6141 SB6180 Cable Modem Power Supply
  • Brand New, High Quality Replacement AC Wall Power Charger Adapter
  • Input: AC 100-240V 50/60Hz Auto (Worldwide AC Input)
  • Over Voltage Protection, Over Heat Protection
  • 90 days money back guarantee. 1 year product WARRANTY. Shipping from USA!
  • Please contact us with any questions regard this product - we are here to help!
Bestseller No. 11
Generic Compatible Replacement AC Adapter Charger for Motorola Surfboard SB6121 SB6141 SB6180 Cable...
  • High Quality Replacement Charger Part
  • Over Voltage and Current Protection
  • AC 110V-220V Wide International Travel Voltages Input
SaleBestseller No. 12
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast...
  • Ultra-fast DOCSIS 3.1 performance - Delivers true Gigabit-plus speeds. Supports fast internet plans with Comcast Xfinity, Cox, and Spectrum. Backward...
  • Pairs with any WiFi router - Seamlessly compatible with any WiFi router to connect all your devices. This cable modem does NOT have a built-in...
  • Multi-gigabit Ethernet speed - A 2.5 GB Ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing...
  • Fast streaming, conferencing, gaming - Applies Active Queue Management (AQM) for reduced Internet latency and better app performance, including online...
  • Extreme cost savings - Owning your own modem typically saves the home $168 per year in monthly rental charges. (Savings described is for Comcast...
SaleBestseller No. 13
Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and...
  • Fast 24x8 DOCSIS 3.0 cable Modem Plus a built-in AC1900 Dual band (2.4GHz and 5GHz) Wi-Fi Gigabit Router with four Gigabit (GigE) Ethernet ports,...
  • Eliminate up to 156 dollars per year in cable Modem rental fees. (Savings are shown for Comcast Xfinity and vary by cable service provider.) certified...
  • Built-in high-speed router with AC1900 wireless and Power boost - Provides internet access for Wi-Fi devices including smartphones, notebooks,...
  • Wireless power boost for better speed and range - Adds high-performance Wi-Fi power amplifiers to boost the wireless signals to the legal limit,...
SaleBestseller No. 14
Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band...
  • THREE-IN-ONE CABLE MODEM, AC1900 ROUTER, AND XFINITY COMPATIBLE VOICE PORTS - Includes 24X8 DOCSIS 3. 0 cable modem, AC1900 Dual Band (2. 4GHz and...
  • REQUIRES COMCAST XFINITY INTERNET SERVICE. Approved by and for use with Comcast Xfinity and Xfinity X1. This product will not work with any other...
  • ELIMINATE UP TO 156 Dollars IN CABLE MODEM RENTAL FEES PER YEAR – Say goodbye to monthly rental fees and landline phone costs.
  • BUILT-IN HIGH-SPEED ROUTER WITH AC1900 WIRELESS AND POWER BOOST - provides Internet access for WiFi devices including smartphones, notebooks, tablets,...
  • WIRELESS POWER BOOST FOR BETTER SPEED AND RANGE - adds high-performance WiFi power amplifiers to boost the wireless signals to the legal limit, giving...
SaleBestseller No. 15
ARRIS SURFboard SB6190 DOCSIS 3.0 32 x 8 Gigabit Cable Modem | Comcast Xfinity, Cox, Spectrum | 1...
  • A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem is designed to bring you...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service...
  • Modem Technology: DOCSIS 3.0 is an reliable, broadly available, and affordable technology that delivers high speed internet to your home devices.
  • Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a...
  • Compatibility: The SURFboard SB6190 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It's approved...
Bestseller No. 16
Slim Pro MicroUSB Cable Works for Motorola XT860 4G is Fast Data and Charging Speeds!
  • Keep your Motorola XT860 4G Charged and Synced up to date with this Micro-USB Cable!
  • This OEM Micro-USB 2.0 to USB Data Cable is designed specifically for your Motorola XT860 4G to ensure the best quality!
  • Simultaneously charge and transfer data from your device through your MAC PC's USB 2.0 or 3.0 Port.
  • Charge rapidly with a rate of up to 10A and use to transfer data, music or video files from your device to any PC or Mac.
  • BUY NOW - NEWEST VERSION NOW AVAILABLE!*
SaleBestseller No. 17
ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem | Approved for Comcast Xfinity, Cox,...
  • A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard S33 DOCSIS 3.1 Cable Modem is designed to bring you...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service...
  • Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better...
  • Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a...
  • Compatibility: The SURFboard S33 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity...
SaleBestseller No. 18
ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, Cox, Charter Spectrum,...
  • A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is designed to bring you...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service...
  • Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better...
  • Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a...
  • Compatibility: The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity...
SaleBestseller No. 19
Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power...
  • Instantly upgraded you WiFi performance with advanced tech all while saving up to $168 per year in rental fees by owning your cable modem.
  • Access the fastest cable internet plans available, with the future-proof performance of the DOCSIS 3.1 cable modem.
  • Includes a built-in high speed AC3200 WiFi router with Power Boost, Range Boost, and AnyBeam WiFi Beamforming for ultra fast, reliable WiFi.
  • Intelligent mobile app - Comes with a smart WiFi app for easy setup, guest network management, usage monitoring, speed testing, parental controls,...
  • Reliability you can count on - A worldwide leader in technology people depend on. Comes with 2-years of free expert support from our team
Bestseller No. 20
Motorola MG7550 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox, Charter...
  • 16x4 DOCSIS 3.0 cable modem plus a built-in AC1900 Dual Band (2.4 GHz and 5 GHz) WiFi Gigabit Router with four Gigabit (GigE) Ethernet ports, a...
  • Requires cable Internet service. Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, Suddenlink,...
  • Built-in high-speed Wi-Fi router with AC1900 Wi-Fi, and Power Boost, and DFS provides Internet access for Wi-Fi devices including smartphones,...
  • Wireless Power Boost adds high-performance WiFi power amplifiers to boost the wireless signals to the legal limit, giving a significant boost in speed...
  • Integrating the cable modem and router creates a reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk...

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John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Cable Modem Motorola Sb6121 that you consider buying. Your questions might include the following:

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  1. Brand Value: Every brand of Cable Modem Motorola Sb6121 has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Cable Modem Motorola Sb6121?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Cable Modem Motorola Sb6121.
  5. Customer Ratings: Number ratings grade Cable Modem Motorola Sb6121 objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Cable Modem Motorola Sb6121.
  7. Product Quality: You don’t always get what you pay for with an Cable Modem Motorola Sb6121, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Cable Modem Motorola Sb6121 is should be an indication of how long it will work out for you.

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FAQ:

Q: What is the Motorola sb6121 surfboard cable modem?

A: Motorola’s easy-to-use SB6121 SURFboard DOCSIS3.0 Cable Modem unlocks the potential of offering innovative high-bandwidth data and multimedia services to customers. The Motorola SB6121 SURFboard DOCSIS 3.0 Cable Modem provides operators with an economic option for providing Ultra-Broadband services.

Q: Why choose sb6121 for ultra broadband?

A: for providing Ultra-Broadband services, with four times the current maximum user data throughput approximating 160 Mbps in DOCSIS mode and 195 Mbps in EuroDOCSIS mode*, without the need for hybrid fiber coax (HFC) plant upgrade. Maximizing an operator’s current infrastructure investment, the SB6121 can be deployed without service interruption.

Q: What is the download speed of keykey Motorola sb6121?

A: Key Motorola SB6121 Features Dimensions 9 × 6 × 3 in Brand Motorola Color Black Wired Download Speeds 172 Mbps Model Number SB6121 4 more rows …

Q: What is the best cable modem on the market?

A: 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.