The Best Sb6121 Modem of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Sb6121 Modem of 2025. Check our ranking below.
2,688 Reviews Scanned
- 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.
- A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is designed to bring you superior connectivity, increase your network capability and provide faster streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing. .Telephone Port : None. HD Multi-Media Streaming : Yes.
- 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 provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
- Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
- System requirements 1. High-speed Internet access account 2.Web browser access – Internet Explorer, Google Chrome, Firefox, or Safari 3. Compatible operating systems: 4. Windows 10 5. Windows 8 6. Windows 7 Service Pack 1 (SP1) Note: Although older versions of Microsoft Windows operating systems are no longer specifically supported, they should still function with your SB8200. a.Macintosh 10.4 or higher b. UNIX c. Linux
- 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 Wi-Fi router for networking.
![ARRIS (SB6190) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, For Comcast Xfinity, Cox, check with ISP for compatibility [Not for Spectrum] 1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty - White](https://m.media-amazon.com/images/I/31dUaMH9LML._SL160_.jpg)
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels
- 1 Gigabit Ethernet port for connecting to a Wi-Fi router or other device.
- Cable internet service required. Does not inlcude Wi-Fi and does not support cable digital voice service.
- arris
- 32x8 Cable Modem
- Approved for Cox and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Froniter or other Fiber Optic, DSL or Satellite internet service providers.
- Does NOT include Wi-Fi and Does NOT support cable digital voice service.
- The SB6190 is a DOCSIS 3.0 cable modem capable of bonding up to 32 downstream and 8 upstream channels. It's best for internet speed plans up to 800 Mbps. Plus, when you purchase your modem, not only are you powering your home network with the latest technology, but you also save money on modem rental fees. Own your modem and start saving today!
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels
- 1 Gigabit Ethernet port for connecting to a Wi-Fi router or other device.
- This product may come white or black in color
- Approved for Cox, Spectrum and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Frontier or other Fiber Optic, DSL or Satellite internet service providers.
- Does NOT include Wi-Fi and Does NOT support cable digital voice service.
- Modem Technology/Simple Set-Up: DOCSIS 3.0 is a reliable, broadly available & affordable technology that delivers high speed internet to your home devices. Plug-in the device, download the SURFboard Central App & follow the instructions to activate.
- Compatibility: Compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It's approved for cable internet speed plans up to 400 Mbps. Check your Internet Service Provider website to confirm compatibility.
- 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 compatibility
- Compatible with Windows, Macintosh and UNIX computers
- Front-panel LEDs indicate status and simplify troubleshooting
- This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty. IMPORTANT NOTEL: A few units might show the brand as Motorola (and not Arris) as Arris had acquired Motorola for 2 years; hence it will be the same product and the same model
- 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 multiple devices at a time.
- Fast, Reliable Connection: Enjoy high-speed streaming, gaming, and browsing with a trusted brand used in over 260 million homes.
- Fast & Reliable Modem: DOCSIS 3.1 delivers Gbps Speed with better security and low latency—ideal for gaming and streaming.
- Easy Setup: Just plug in and activate with the SURFboard Central app—connect to your own Wi-Fi router for home networking.
- Service Compatibility: Works with major ISPs like Xfinity, Spectrum, and Cox
- Save on Fees: Own your modem and avoid up to $168/year in rental charges (varies by provider)
- 🚀 DOCSIS 3.1 HIGH-SPEED PERFORMANCE - Supports cable internet plans up to 1 Gbps with advanced technology. Perfect for streaming 4K, gaming, and multiple devices. For plans OVER 1 Gbps, see our CODA56 Modem.
- 📋 CHECK COMPATIBILITY FIRST - Contact your cable internet provider (Xfinity, Spectrum Residential, Cox, etc.) to confirm this modem works with your specific plan BEFORE purchasing. Works exclusively with cable service - NOT compatible with Spectrum Business, DSL, fiber, satellite, or fixed wireless.
- 🌐 CABLE MODEM FOR INTERNET CONNECTION - Connects your home to cable internet service via coax. Pairs with your WiFi router (sold separately) to provide wireless internet throughout your home.
- 💰POTENTIAL RENTAL FEE SAVINGS - While some providers have reduced or eliminated modem rental fees, this modem can still provide cost savings and performance benefits. Check with your provider about current rental fees before purchasing.
- DOCSIS 3.1 TECHNOLOGY - Supports cable internet speeds UP TO 1 Gbps with advanced DOCSIS 3.1 performance. Perfect for streaming, gaming, and multiple devices when paired with your WiFi router.
- Approved for Cox, Spectrum and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Froniter or other Fiber Optic, DSL or Satellite internet service providers.
- Does NOT include Wi-Fi and Does NOT support cable digital voice service.
- The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It is approved for cable internet speed plans up to 1 Gbps. Check your cable ISP website to confirm compatibility.
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, or 2 downstream x 2 upstream OFDM DOCSIS 3.1 channels.
- Two 1-Gigabit Ethernet ports
Last update on 2025-09-26 / Affiliate links / Images from Amazon Product Advertising API
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FAQ:
Q: What is the best cable modem to buy?
A: Best Versatility: ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem. Most available cable modems meet all these demands, but the ARRIS SURFboard SB6141 probably strikes the best balance of all of them. It has something called DOCSIS 3.0 technology, which unites up to eight downstream channels and four upstream channels,…
Q: How much does a cable modem cost?
A: Most cable modems are external, although rare internal modems are available. A cable modem costs $40-$90 . For example, Circuit City, an online-only retailer, sells the standalone Motorola SURFboard SB5105 [ 1] cable modem for $60. Some cable modems are combination devices with routers, which create a wireless network. These devices cost $80-$200.
Q: What is Comcast cable modem?
A: The Comcast modem connects to your computer or network via an Ethernet cable. Related Articles. Comcast’s high-speed Internet service is provided to your business through a coaxial cable that carries television and Internet signals. The Comcast modem separates these signals to offer a pure Internet connection to your business computer or network.