20 Best Motorola Sb6121 Surfboard Cable Modem [2024]

Are you looking for the best motorola sb6121 surfboard cable modem? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling motorola sb6121 surfboard cable modem.

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# Preview Product
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 Replacement 12V Modem Power Cord AC DC Adapter Charger for Comcast Xfinity Motorola Surfboard... Replacement 12V Modem Power Cord AC DC Adapter Charger for Comcast Xfinity Motorola Surfboard...
4 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)
5 ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black
6 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...
7 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...
8 motorola Surfboard SB6121 Cable Modem motorola Surfboard SB6121 Cable Modem
9 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...
10 Motorola SBG6580 Surfboard Extreme 3.0 Wireless Cable Modem Gateway - Latest Version (Renewed) Motorola SBG6580 Surfboard Extreme 3.0 Wireless Cable Modem Gateway - Latest Version (Renewed)
11 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...
12 ARRIS SURFboard SB6141-RB 8x4 DOCSIS 3.0 Cable Modem (Renewed) ARRIS SURFboard SB6141-RB 8x4 DOCSIS 3.0 Cable Modem (Renewed)
13 Motorola SBG6580 SURFboard eXtreme 3.0 Wireless Cable Modem Gateway - Latest Version Motorola SBG6580 SURFboard eXtreme 3.0 Wireless Cable Modem Gateway - Latest Version
14 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...
15 AC Adapter for Motorola Surfboard SB6121 SB6141 SB6180 Cable Modem Power Supply AC Adapter for Motorola Surfboard SB6121 SB6141 SB6180 Cable Modem Power Supply
16 AC Adapter for Motorola Surfboard Sb6141 Sb6121 Sbg6580 Cable Modem Power Supply AC Adapter for Motorola Surfboard Sb6141 Sb6121 Sbg6580 Cable Modem Power Supply
17 PwrON 6.6 FT 12V AC Adapter for Arris Surfboard Cable Modem SB6121 SB6141 SB6120 SB6180 SB6183... PwrON 6.6 FT 12V AC Adapter for Arris Surfboard Cable Modem SB6121 SB6141 SB6120 SB6180 SB6183...
18 AC DC Adapter Power Cord Charger Compatible with Motorola Surfboard SB6120 SB6121 SB6141 Cable Modem AC DC Adapter Power Cord Charger Compatible with Motorola Surfboard SB6120 SB6121 SB6141 Cable Modem
19 SLLEA AC Adapter Power Supply Replacement for Motorola Surfboard SB6141 SB6121 SBG6580 Cable Modem SLLEA AC Adapter Power Supply Replacement for Motorola Surfboard SB6141 SB6121 SBG6580 Cable Modem
20 Ac Adapter for Motorola Surfboard SB6120 SB6121 SB6141 SB6180 SBG6580 SBG901 900 Cable Modem dta-100... Ac Adapter for Motorola Surfboard SB6120 SB6121 SB6141 SB6180 SBG6580 SBG901 900 Cable Modem...
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
Replacement 12V Modem Power Cord AC DC Adapter Charger for Comcast Xfinity Motorola Surfboard...
  • You Will Get HIGH QUALITY 1 x 12V 2A 24W power supply with 6.6ft power cord, 1 x 5.5/2.1 DC female barrel connector to screw adapter.To meet more...
  • This 12V2A power adapter, suitable for Motorola ARRIS SURFboard SB6190 SB6183 Sb5100 ,Comcast Xfinity Motorola Surfboard ARRIS SURFboard SBG6700AC...
  • AC Adapter Input Voltage: 100-240V input 50/60HZ,; Output Voltage: 12V DC 2000 mA, 24 Watt max wattage. Adapt to 2.1mm * 5.5mm and 2.5mm * 5.5mm...
  • Safety Guarantee; This adapters was made with the highest quality materials.OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over...
  • More energy-saving and power-saving, saving of electricity bill than ordinary equipment. 24hours response, 30 days money back guarantee, If you...
Bestseller No. 4
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
Bestseller No. 5
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...
SaleBestseller No. 6
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. 7
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
SaleBestseller No. 8
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,...
Bestseller No. 9
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. 10
Motorola SBG6580 Surfboard Extreme 3.0 Wireless Cable Modem Gateway - Latest Version (Renewed)
  • Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more. Call internet service provider if not listed here. Requires...
  • Not compatible with: Verizon, AT&T, or CenturyLink
  • Two-in-one DOCSIS 3.0 Cable Modem + N300 WiFi Router
  • Docsis 3.0 Modem with 8 DOWNLOAD and 4 UPLOAD Channels capable of 343 Mbps download and 131 Mbps.
Bestseller No. 11
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. 12
ARRIS SURFboard SB6141-RB 8x4 DOCSIS 3.0 Cable Modem (Renewed)
  • Approved on Comcast Xfinity, Spectrum (Charter, Time Warner, Brighthouse Networks), Cox, Mediacom, Suddenlink and most other US Cable Internet...
  • Wired modem only. Does not include WiFi router or VOIP Telephone adapter. Gigabit Etherent port to connect to PC or Router.
  • 8 Download Channels and 4 Upload Channels capable of up to 343 Mbps download and 131 upload speeds. Recommended for Internet Plans up to 100 Mbps.
  • Supports both IPv4 and IPv6, the latest standard.
  • 90 Day Warranty. ARRIS Certified Refurbished. US Technical support. ARRIS Certified Refurbished products will ALWAYS be branded ARRIS, Never Motorola!...
Bestseller No. 13
Motorola SBG6580 SURFboard eXtreme 3.0 Wireless Cable Modem Gateway - Latest Version
  • Download speeds up to 343 Mbps
  • 8 download and 4 upload channels
  • Compatible with Spectrum and Comcast Xfinity
  • Switchable 2.4/5.0 GHz Dual-band and 802.11n Wi-Fi
  • Includes a 4-Port Gigabit Ethernet Router
Bestseller No. 14
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
Bestseller No. 15
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. 16
AC Adapter for Motorola Surfboard Sb6141 Sb6121 Sbg6580 Cable Modem Power Supply
  • Compatibility: This Power adapter will work with Motorola SURFboard Sb6141 Sb6121 Sbg6580 Cable Modem Power Supply
  • Input Voltage: 100~240VAC 50/60Hz, Worldwide Use Output: DC
  • Brand New AC to DC Power Adapter
  • Safe standard: FCC,CE, RoSH
  • Short-circuit Protection, Over Voltage Protection, Over Heat Protection
Bestseller No. 17
PwrON 6.6 FT 12V AC Adapter for Arris Surfboard Cable Modem SB6121 SB6141 SB6120 SB6180 SB6183...
  • AC Input: 100 ~ 240V 50~60Hz
  • DC Output: 12V 1000mA (750 mA compatible)
  • Cord Length: 6.6 FT/2 M
  • Industry Quality : Over Voltage Protection, Over Heat Protection
  • Compatible With Arris Modem SB5100, SB5101,SB5101U,SB5120; 2210-02
Bestseller No. 18
AC DC Adapter Power Cord Charger Compatible with Motorola Surfboard SB6120 SB6121 SB6141 Cable Modem
  • AC DC ADAPTER Power Cord Charger Compatible with Motorola Surfboard SB6120 SB6121 SB6141 Cable Modem
  • Input Voltage: 100~240VAC 50/60Hz, Worldwide Use; Output: DC
  • Brand New AC to DC Power Adapter
  • CE/FCC/RoHS certified; Short-circuit Protection, Over Voltage Protection, Over Heat Protection
  • Compatibility: This Power adapter will work with Motorola Surfboard SB6120 SB6121 SB6141 Cable Modem AC DC ADAPTER Power Cord
Bestseller No. 19
SLLEA AC Adapter Power Supply Replacement for Motorola Surfboard SB6141 SB6121 SBG6580 Cable Modem
  • CABLE LENGTH: TOTAL 4FT/1.2M.
  • SPECIFICATIONS: Input Voltage : AC 100-240V (Worldwide AC Input)
  • INDUSTRY QUALITY:100% Brand New Cables Are Tested BY Manufacture With High Quality.Approved by CE. Will not Cause a Fire,Safety USE !
  • WIDE COMPATIBILITY:AC Adapter Power Supply Replacement for Motorola SURFboard SB6141 SB6121 SBG6580 Cable Modem
Bestseller No. 20

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FAQ:

Q: What is the Motorola sb6121 surfboard DOCSIS cable modem?

A: The Motorola SB6121 SURFboard DOCSIS 3.0 Cable Modem provides operators with an economic option 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.

Q: What are the dimensions of the sb6121 cable modem?

A: SURFboard® SB6121 Cable Modem DATA SHEET General Specifications Cable Interface 75 Ω F-connector CPE Network Interface 10/100/1000Base-T Ethernet (RJ-45) Data Protocol . TCP/IP Dimensions years to continually improve 5.24 in H x 5.24 in W x 1.65 in D our environmental profile. We (133 mm x 133 mm x 42 mm) Power 9W (nominal)

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: How fast is the surfboard sbg6700-ac?

A: The SURFboard SBG6700-AC is 3 products in 1: a DOCSIS 3.0 Cable Modem, Dual-Band Concurrent 802.11ac Wi-Fi Access Point and 2-Port Gigabit Ethernet Router. With download speeds up to 343 Mbps and Wi-Fi speeds up to 1600 Mbps your gaming and video streaming just got better!