20 Best Arris Sb6121 [2024]

Are you looking for the best arris sb6121? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling arris 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 ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem (Renewed)-Black
3 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...
4 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...
5 NETGEAR Wi-Fi Range Extender EX3700 - Coverage Up to 1000 Sq Ft and 15 Devices with AC750 Dual Band... NETGEAR Wi-Fi Range Extender EX3700 - Coverage Up to 1000 Sq Ft and 15 Devices with AC750 Dual...
6 ARRIS SURFboard mAX Pro W133 Tri-Band Mesh Wi-Fi 6 System | AX11000 Wi-Fi Speed up to 11 Gbps |... ARRIS SURFboard mAX Pro W133 Tri-Band Mesh Wi-Fi 6 System | AX11000 Wi-Fi Speed up to 11 Gbps |...
7 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...
8 ARRIS SURFboard SBV3202 DOCSIS 3.0 Cable Modem | Comcast Xfinity Internet & Voice | 1 Gbps Port | 2... ARRIS SURFboard SBV3202 DOCSIS 3.0 Cable Modem | Comcast Xfinity Internet & Voice | 1 Gbps Port |...
9 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,...
10 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...
11 motorola Surfboard SB6121 Cable Modem (Renewed) motorola Surfboard SB6121 Cable Modem (Renewed)
12 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...
13 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...
14 ARRIS SURFboard SBG10 DOCSIS 3.0 16 x 4 Gigabit Cable Modem & AC1600 Wi-Fi Router | Comcast Xfinity,... ARRIS SURFboard SBG10 DOCSIS 3.0 16 x 4 Gigabit Cable Modem & AC1600 Wi-Fi Router | Comcast...
15 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...
16 Arris Touchstone 16x4 SB6183 DOCSIS 3.0 Cable Modem - Black (Renewed) Arris Touchstone 16x4 SB6183 DOCSIS 3.0 Cable Modem - Black (Renewed)
17 MOTOROLA VDSL2/ADSL2+ Modem + WiFi AC1600 Gigabit Router, Model MD1600, for Non-Bonded,... MOTOROLA VDSL2/ADSL2+ Modem + WiFi AC1600 Gigabit Router, Model MD1600, for Non-Bonded,...
18 ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem | Comcast Xfinity Internet & Voice | Two 1 Gbps... ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem | Comcast Xfinity Internet & Voice | Two 1...
19 Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including... Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including...
20 ARRIS SURFboard SBG6580 DOCSIS 3.0 Cable Modem/ Wi-Fi N300 2.4Ghz + N300 5GHz Dual Band Router -... ARRIS SURFboard SBG6580 DOCSIS 3.0 Cable Modem/ Wi-Fi N300 2.4Ghz + N300 5GHz Dual Band Router -...
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
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. 3
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. 4
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. 5
NETGEAR Wi-Fi Range Extender EX3700 - Coverage Up to 1000 Sq Ft and 15 Devices with AC750 Dual Band...
  • EXTENDED WIRELESS COVERAGE: Adds Wi-Fi range coverage up to 1000 sq ft, and connects up to 15 devices such as laptops, smartphones, speakers, IP...
  • AC750 WI-FI SPEED: Provides up to 750Mbps performance using dual-band and patented FastLane(TM) technology.
  • UNIVERSAL COMPATIBILITY: Works with any wireless router, gateway, or cable modem with Wi-Fi.
  • WIRED ETHERNET PORT: Simply plug in game consoles, streaming players, or other nearby wired devices using the one 10/100M port for maximum speed.
  • SAFE & SECURE: Supports WEP and WPA/WPA2 wireless security protocols.
SaleBestseller No. 6
ARRIS SURFboard mAX Pro W133 Tri-Band Mesh Wi-Fi 6 System | AX11000 Wi-Fi Speed up to 11 Gbps |...
  • ARRIS Quality: With over 260 Million devices sold in home connectivity, we are the experts in making quality networking products! ARRIS Mesh Wi-Fi...
  • The SURFboard mAX Mesh Difference: As you move around your house or you launch that streaming service - the mesh network will adjust to optimize your...
  • Tri-Band System Creates 3 Express Lanes: One band for connecting the routers, one for connecting slower 2.4 GHz devices & one for faster 5 GHz...
  • Simple and Secure Set-up: The SURFboard Central app provides step-by-step instructions to set-up, configure and manage your network. Once setup is...
  • App Designed to Meet Your Smart Home Needs: The app provides parental controls, who's home, QoS, guest network, IFTTT, IoT, device pairing & more....
SaleBestseller No. 7
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...
SaleBestseller No. 8
ARRIS SURFboard SBV3202 DOCSIS 3.0 Cable Modem | Comcast Xfinity Internet & Voice | 1 Gbps Port | 2...
  • 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. For use with Xfinity Internet &...
  • 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 SBV3202 is compatible with Xfinity Internet & Voice service and is approved for cable internet speed plans up to 800...
SaleBestseller No. 9
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. 10
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...
Bestseller No. 11
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. 12
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...
SaleBestseller No. 13
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...
SaleBestseller No. 14
ARRIS SURFboard SBG10 DOCSIS 3.0 16 x 4 Gigabit Cable Modem & AC1600 Wi-Fi Router | Comcast Xfinity,...
  • A Trusted Name in Home Connectivity: Get high speeds, better coverage, and a two-in-one product! With the ARRIS SURFboard SBG10 Wi-Fi Cable Modem, 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 a reliable, broadly available, and affordable technology that delivers high speed internet to your home devices.
  • Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up...
  • Compatibility: The SURFboard SBG10 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It's approved...
SaleBestseller No. 15
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. 16
Arris Touchstone 16x4 SB6183 DOCSIS 3.0 Cable Modem - Black (Renewed)
  • Package Dimensions, 6.0 L x 21.7 H x 17.1 W (centimeters)
Bestseller No. 17
MOTOROLA VDSL2/ADSL2+ Modem + WiFi AC1600 Gigabit Router, Model MD1600, for Non-Bonded,...
  • This Certified Refurbished Motorola Gigabit Wi-Fi router is tested and certified to look and work like new. The refurbishing process includes...
  • MODEL MD1600 DOES NOT WORK WITH BONDED VDSL, BONDED ADSL, OR VDSL VECTORING. PLEASE READ THE CHECKLIST IN THE PRODUCT IMAGES BEFORE PURCHASING. If...
  • MD1600 IS A GREAT CHOICE for many non-bonded/non-vectoring ADSL AND VDSL SERVICES FROM FRONTIER, WINDSTREAM, TDS TELECOM, AND FAIRPOINT. Motorola...
  • BUILT-IN ROUTER INCLUDES 4 GIG-E PORTS, AC1600 WIRELESS, a firewall, WPA/WPA2 wireless security, IPv4 and IPv6 support, and Virtual Private Network...
  • CLEAN AND EASY: This DSL modem/router combo saves space, reduces wires, and includes a setup wizard for fast, easy installation. Delivers Internet...
SaleBestseller No. 18
ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem | Comcast Xfinity Internet & Voice | Two 1 Gbps...
  • A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard T25 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. For use with Xfinity Internet &...
  • 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 T25 is compatible with Xfinity Internet & Voice service and is approved for cable internet speed plans up to 800 Mbps.
Bestseller No. 19
Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including...
  • input voltage:120 -240V
  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon,...
  • SAVE MONTHLY RENTAL FEES: Model C7000 replaces your cable modem and WiFi router saving you up to $150/yr in equipment rental fees. System Requirements...
  • BUILT FOR FAST SPEED: Best for cable provider plans up to 400 Mbps speed
  • FAST Wi Fi PERFORMANCE: Get up to 1800 sq ft wireless coverage and 30 devices connected with AC1900 speed (up to 1900 Mbps)
SaleBestseller No. 20
ARRIS SURFboard SBG6580 DOCSIS 3.0 Cable Modem/ Wi-Fi N300 2.4Ghz + N300 5GHz Dual Band Router -...
  • 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.
  • 8X Faster than DOCSIS 2.0. Supports IPv4 and IPv6 – the latest Internet standard. 802.11n Wi-Fi. 4-Port Gigabit Ethernet Router

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  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their arris sb6121.
  7. Product Quality: You don’t always get what you pay for with an arris sb6121, sometimes less, and sometimes more.
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FAQ:

Q: What are the dimensions of the Arris sb6121?

A: ARRIS Series SB6121 Item model number SB6121 Item Weight 1.3 pounds Product Dimensions 2 x 6.4 x 8.7 inches Item Dimensions LxWxH 2 x 6.4 x 8.7 inches Color Black Computer Memory Type DDR3 SDRAM Department Electronics & Computers Manufacturer Motorola ASIN B004XC6GJ0 Is Discontinued By Manufacturer No Date First Available June 1, 2011

Q: What is surfboard sb6121?

A: SURFboard® Cable Modem The SB6121 delivers your complete personal media experience, at incredible broadband speeds. It harnesses the power of DOCSIS 3.0 technology to bond up to four downstream channels and four upstream channels— providing you advanced multimedia services with download speeds up to 172 Mbps in each direction.

Q: Does the sb6141 modem support 8 channels?

A: I have since purchased the SB6141 model of this modem, that supports 8 channels. Be aware that Xfinity has announced that several of their markets will be upgraded to DOCSIS 3.1 by the end of 2016. If you live in a major metropolitan area, you might consider holding off on purchasing a new modem until those modems become available.

Q: What is the model number of the Arris laptop?

A: ARRIS Series SB6121 Item model number SB6121 Item Weight 1.3 pounds Product Dimensions 2 x 6.4 x 8.7 inches Item Dimensions LxWxH 2 x 6.4 x 8.7 inches Color Black Computer Memory Type DDR3 SDRAM Department Electronics & Computers Manufacturer Motorola ASIN B004XC6GJ0 Is Discontinued By Manufacturer No Date First Available June 1, 2011