6 best optimum online compatible modems

Optimum Online is a popular internet service provider (ISP) that offers high-speed internet services to customers in certain areas of the United States. To use their internet service, customers often need to use a compatible modem. Here's what you need to know about Optimum Online compatible modems:

  1. ISP Compatibility: Optimum Online has a list of approved modems and modem-router combos that are compatible with their internet service. It's essential to check their official website or contact their customer support to ensure that the modem you plan to use is on their approved list.

  2. DOCSIS Compatibility: Most Optimum Online internet plans use DOCSIS (Data Over Cable Service Interface Specification) technology. Make sure the modem you choose supports the specific DOCSIS version required for your plan. DOCSIS 3.0 and DOCSIS 3.1 are common standards for high-speed internet.

  3. Speed and Performance: Consider the maximum speed supported by the modem. Opt for a modem that can handle the speed of your Optimum Online plan. Some modems are designed for basic plans, while others support gigabit speeds.

  4. Modem vs. Modem-Router Combo: You have the option to choose between a standalone modem and a modem-router combo. A modem-router combo combines the functionality of a modem and a wireless router in a single device, which can be convenient for simplifying your home network setup.

  5. Ethernet Ports: Check the number of Ethernet ports available on the modem or modem-router combo. Having multiple ports allows you to connect wired devices directly to the modem for a stable and fast connection.

  6. Wireless Capabilities: If you choose a modem-router combo, look at the wireless specifications. Ensure it supports the Wi-Fi standards (e.g., 802.11ac, 802.11ax) you need for your home network, especially if you have many wireless devices.

  7. Security Features: Optimum Online recommends modems with built-in security features to protect your network from threats. Look for modems that support WPA3 encryption and have firewall capabilities.

  8. Approved Brands and Models: Optimum Online typically provides a list of approved brands and models on their website. Commonly approved brands include Arris, Netgear, and Motorola. Check the list for specific models that are compatible with your Optimum Online plan.

  9. Cost and Rental Options: Consider whether you want to purchase your modem or rent one from Optimum Online.Renting a modem may be convenient but can add to your monthly expenses in the long run. Buying a compatible modem can save you money over time.

  10. Customer Support: Optimum Online's customer support can assist you in setting up your modem and troubleshooting any issues. Ensure you have their contact information handy in case you encounter connectivity problems.

It's important to note that Optimum Online's approved modem list may change over time, so always check their official website or contact their customer support for the most up-to-date information on compatible modems for your specific service plan.

Below you can find our editor's choice of the best optimum online compatible modems on the market
  

NETGEAR Cable Modem Wi-Fi Router Combo C6250 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 300 Mbps | AC1600 Wi-Fi Speed | DOCSIS 3.0

NETGEAR

Based on 13 reviews Check latest price

Product description

The NETGEAR C6250 provides 16 times faster download speeds, up to 680 Mbps, than DOCSIS 2.0. With C6250 2-in-1 AC1600 Wi-Fi router with DOCSIS 3.0 cable modem, you can streaming HD videos, faster downloads, and high-speed online gaming without any interruption. Certified and worked with cable Internet providers like XFINITY from Comcast, Spectrum, COX, Cablevision and more. Customer-owned modems may not be compatible with certain cable networks. Please check with your cable provider to confirm this NETGEAR modem is allowed on your cable network. Check your cable Internet service provider web site for data speed tier compatibility.

  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
  • SAVE MONTHLY RENTAL FEES: Model C6250 replaces your cable modem and WiFi router saving you up to $168/yr in equipment rental fees.
  • BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.
  • FAST WiFi PERFORMANCE: Get up to 1500 sq ft wireless coverage and 25 devices connected with AC1600 speed (up to 1600 Mbps).
  • VERSATILE CONNECTIONS: 2 Gigabit Ethernet ports and 1 USB port give you fast wired connections to your computer, printer, game box, storage drive, and other devices.
  • MODEM TECHNOLOGY: Engineered with 16x4 channel bonding and DOCSIS 3.0.
  • SAFE & SECURE: Includes parental controls, and supports WEP and WPA/WPA2 wireless security protocols.

User questions & answers

Question: What does "AC1200" mean
Answer: Dear Customer, For more questions, please feel free to contact us at ✉ ▶ [email protected]◀【☏ +1(833)816-6558】. And the 24 hour online after-sales service website is https: //rockspace. afterservice. vip. The answer is YES. 2000 square feet shouldn't be a problem with our whole-home wifi 6. The wifi 6 router delivers reliable coverage up to 2500 sq ft. However, to ensure the best wifi 6 signal, it is important to make sure the placement of your wifi router is as optimal as possible. Reducing obstructions and placing the router in a central location will help ensure your signal reaches the areas you need. Hope you have a good experience with our AX1800 smart wifi router. Best regards, Mary
Question: Does the box come with the necessary cables? (e.g. power cord and coax cable
Answer: Dear Customer, For more questions, please feel free to contact us at✉ ▶ [email protected] ◀【☏ +1(833)816-6558】. And the 24 hour online after-sales service website is https: //rockspace. afterservice. vip. The answer is YES, our Rockspace wifi 6 router support VPN to transfer data. Hope you have a good experience with our AX1800 smart wifi router. Best regards, Rockspace
Question: Does this modem have netgear genie
Answer: Dear Customer, For more questions, please feel free to contact us at✉ ▶ [email protected] ◀【☏ +1(833)816-6558】. And the 24 hour online after-sales service website is https: //rockspace. afterservice. vip. Yes. Our Rockspace AX1800 smart wifi router is equipped with WPA3 and built-in firewall, which can provide security protection on every aspects for your personal devices. Hope you have a good experience with our AX1800 smart wifi router. Best regards, Rockspace
Question: I see many ppl asking about a router and answers say “modem only” but the description says wifi modem combo. what am i missing
Answer: Dear Customer, For more questions, please feel free to contact us at✉ ▶ [email protected] ◀【☏ +1(833)816-6558】. And the 24 hour online after-sales service website is https: //rockspace. afterservice. vip. The answer is YES. The wifi 6 router is equipped with a USB 3.0 port. Firstly, the wifi router will charge your smart phone via the USB 3.0 port. Besides, the USB 3.0 port of the AX1800 wifi router can easily connect shared storage devices, printers, and other peripherals to your network. Hope you have a good experience with our AX1800 smart wifi router. Best regards, Mary

Product features

Why Buy Your Own Modem with WiFi?

Save up to 168 Dollars/year

Eliminates monthly rental fees that can amount 168 dollars or more per year.

Better WiFi Performance

Get superior WiFi coverage and more features compared to cable provider modems with WiFi.

Works with Major Cable Providers

Works with all major cable providers such as Xfinity by Comcast, Spectrum, and COX.*

*Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirectTV, DISH, and any bundled voice services.

Built for Serious Speed

Supports cable internet plans with speeds up to 300Mbps ensuring fast, reliable internet speed for HD streaming and more.

Up to 1500 Sq. Ft. WiFi Coverage

Enjoy strong, reliable WiFi coverage thanks to range-boosting amplified antennas.

Seamless WiFi for up to 25 Devices

Intelligently selects between dual bands to minimize interference and maximize speed for your many smart wireless devices.

Built for Serious Streaming

Up to 1600Mbps wireless speed (AC1600), perfect for demanding HD streaming and gaming.

Easy 5 Minute Setup

Step 1: Plug your coax cable into the modem router.

Step 2: Activate by either

(a) connect an Ethernet cable to your computer and follow the on-screen setup, or

(b) call your cable provider to activate over the phone.

Two Gigabit Ethernet ports and one USB port give you super-fast wired connections to your computer, printer, game box, storage drive, and other devices.

MOTOROLA 16x4 Cable Modem, Model MB7420, 686 Mbps DOCSIS 3.0, Certified by Comcast XFINITY, Charter Spectrum, Time Warner Cable, Cox, BrightHouse, and More

Motorola

Based on 4 reviews Check latest price
  • This 16x4 DOCSIS 3.0 cable modem provides speeds up to 686 Mbps, sixteen times faster than DOCSIS 2.0. A Full-Band Capture digital tuner ensures a faster, more reliable Internet.
  • Cable modem's Ethernet port connects to a computer, HDTV, game station, or wireless router. (This Model MB7420 cable modem does NOT have a built-in wireless router and does not have a telephone adapter or phone jack. The Motorola MG7310, MG7315, MG7540 and MG7550 have a built-in wireless router.)
  • Requires cable Internet service. Certified by Comcast XFINITY for residential speeds up to Extreme 300, by Comcast Business for speeds up to Deluxe 250, Time Warner Cable, Cox, Charter Spectrum, BrightHouse, and other leading cable service providers for modem ownership programs that typically save rental charges of $120 or more per year
  • Setup is fast and easy with a few quick steps set out in a Quick Start guide. Experienced USA-based customer support specialists are there to help if you need them.
  • Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment.

User questions & answers

Question: How warm does this modem run? Some of the more recent SB modems ran too hot, leading to early failure
Answer: Handling of heat was definitely considered in the MB7420 design. All cable modems generate heat, the good designs get rid of the heat efficiently. The MB7420 is very well ventilated on both sides and on the top, and has robust heat sinks on the circuit board to dissipate the heat. The vertical design also helps air circulation. The two year warranty is the longest in the industry and speaks to the durability of the product. With that said, definitely do not operate the MB7420 on its side. The MB7420 is intended to be in a vertical position.
Question: Are the leds insanely bright like on other motorola modems
Answer: Whether the LEDs have the right amount of brightness is an opinion. The MB7420 LED brightness was reduced in response to user reviews on earlier modem designs. Definitely attention was paid to the output level and the electronic design throttled back the brightness. You will probably find it a good, but can't say for sure. Your opinion would be welcome.
Question: Can the stabilizing foot be removed so the modem can lay on its side? Is it screwed/clipped on
Answer: The foot is attached with 2 screws under the label. It is designed to stand up on the foot to allow for adequate cooling for the modem at high speeds. It is not designed to lay flat on its side with one panel blocked. It is recommended that both side panels and the top not be blocked. Laying it on its side and blocking the ventilation could produce improper operation and unit failure.
Question: Is this part of the arris motorola surfboard line up of modems
Answer: No, it is not. This is a much newer design. The MB7420 has a Full Band Capture Digital Tuner, upgraded power handling to protect against lightning and power surges, robust heat sinks to handle a broad temperature range. And the MB7420 looks a lot better than the Arris SB6141.

Product features

The smart choice for your cable Internet service

Eliminate monthly cable modem rental fees – Typically saves 156 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.

300+ Mbps – Maximum actual Internet download speed.

GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.

Connect any WiFi router you choose

Plugs easily into any router for shared Internet access by all your WiFi and Ethernet-capable devices. This flexible approach lets you pair this cable modem with any router you choose for your WiFi needs, including a mesh router or gaming router.

If the MB7420’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.

Compatible with Most Cable Providers

Certified by Comcast Xfinity, Cox, Charter Spectrum, and other cable providers.*†

*Not compatible with Verizon, AT&T, CenturyLink, and other fiber optic, satellite, or DSL services.

† This cable modem does not have telephone jacks for the support of voice calls.

Fast Internet Speed

For other service providers, supported service speeds are similar to Comcast.

Easy Setup

Connects fast with just 3 connections – power, coax cable, and Ethernet.

ARRIS SURFboard SBG10 DOCSIS 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & others (black)

ARRIS

Based on 8 reviews Check latest price

Product description

The SURFboard SBG10 is a DOCSIS 3. 0 16x4 cable modem, Wave 2 AC1600 Dual Band Concurrent Wi-Fi Access Point and 2-Port Gigabit Ethernet Router, all wrapped up in one device. Refer instruction manual for troubleshooting steps.

  • 3 products in 1: DOCSIS 3 0 Cable Modem, AC1600 dual-band Wi-Fi Router, 2 Port Gigabit Ethernet Router (cable digital voice service not supported)
  • Wi-Fi 5 AC1600 dual-band concurrent Wi-Fi Router with 2 Gigabit Ethernet ports
  • Setup and manage your network with the SURFboard Manager app
  • Compatible with major U S Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • 16 downstream & 4 upstream channels. Best for cable internet service plans up to 400 Mbps.

User questions & answers

Question: Is this both a modem and router ? (2 in1 thing
Answer: Yes it is! It has dual functionality. If you have a router you like already you can turn the wifi part off and just use it as a modem
Question: This says it isn't compatible with at&t, does that mean my iphone, with an at&t connection, will not be able to use this modem
Answer: It is not compatible with AT&T High Speed Internet service, only good with traditional Cable Service. Your iPhone will connect to the Wi-Fi without issue.
Question: i'm using this with netgear router (with port forwarding). therefore i have to run this modem in bridge mode. would i be better with a cheaper modem
Answer: I think you'd be better with a cheaper modem. The whole point of getting this modem is so you don't need to purchase a separate router/Wi-Fi access point.
Question: I was reading that you cannot run the lan jack and wifi at the same time on this device, is that true? Has anyone else experienced this problem
Answer: Yes, you can use LAN and wifi the same time.

Product features

A high-speed internet experience that's quick, easy and economical

2 products in 1 - The SURFboard SBG10 combines a DOCSIS 3.0 cable modem with an 802.11ac Wi-Fi router with 2 one-gigabit Ethernet ports. It has 16 downstream and 4 upstream channels and AC1600 Wi-Fi, making it a perfect choice for homes with less devices to manage. The all-in-one modem & Wi-Fi router combo means no more managing multiple devices and is best for Cable Internet Speed Plans up to 400 Mbps. Plus, it saves you money on monthly modem rental fees and fits easily into any home office.

Compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. If you are unsure about compatibility, check your ISP website or the ARRIS website to confirm.

2 products in 1

The SBG10 combines a DOCSIS 3.0 cable modem with a 802.11ac Wi-Fi router equipped with 2 one-gigabit Ethernet ports. A space-saving and economical option.

Compatible with major U.S. cable internet providers

The perfect addition to your home network, the SBG10 is compatible with major U.S. cable internet providers, including Cox, Spectrum, Xfinity and others. It's best for internet speed plans up to 400 Mbps.

Quick & easy setup

With just a few quick cable connections and a visit to your ISP's activation page, you can have a lightning-fast home network up and running.

  1. Connect the cables: coaxial, power, Ethernet
  2. Contact your service provider (via web portal) to activate
  3. Configure your Wi-Fi settings and connect your devices

Two 1-Gigabit Ethernet Ports

The SBG10 is equipped with two 1-gigabit Ethernet ports for ultra-fast wired networking. Perfect for connecting smart TVs, gaming consoles and more.

ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem, Certified for Xfinity Internet & Voice (black)

ARRIS

Based on 733 reviews Check latest price

Product description

The T25 is a DOCSIS 3.1 cable modem – the newest technology being offered by cable providers – with two telephone lines for digital voice support, plus two 1-gigabit Ethernet ports for connecting to a Wi-Fi router or other wired devices. It’s capable of bonding up to 32 downstream and 8 upstream DOCSIS 3.0 channels or 2 x 2 OFDM DOCSIS 3.1 channels, providing increased bandwidth for true gigabit speed capability, perfect for things like 4K ultra-HD video streaming and Virtual Reality gaming! It is the perfect choice for gigabit speed internet plans and saves money on monthly modem rental fees.

  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers
  • DOCSIS 3 1 Cable Modem with 32 downstream x 8 upstream DOCSIS 3 0 channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
  • Two 1-Gigabit Ethernet ports and 2 Telephony ports for Xfinity digital voice service
  • Best for Xfinity internet speed plans up to 2 Gbps
  • finity internet service required Does not include Wi-Fi

User questions & answers

Question: my arris tm822r has battery backup, which is great for when power goes out. does this modem have a battery backup
Answer: Yes, it fits well in appropriately dimensioned carry-on luggage.
Question: Does this model still use the Intel Puma chipset
Answer: It is 22 inches when all wrapped up.
Question: does it work with cox cable and voice service
Answer: Yes I bought it for my granddaughter she plays guitar but when we went to set. It up the bottom of the stands where there is a screw wasn't in correct it can be used but carefully her mom said. I was disappointed it was her xmas gift
Question: does it work with Mediacom cable and voice service
Answer: SEND IT BACK FOR ANOTHER ONE

Product features

SURFboard DOCSIS 3.1 Cable Modem for Xfinity Internet & Voice

10x faster than DOCSIS 3.0 - The SURFboard T25 is a DOCSIS 3.1 cable modem with Voice over IP (VoIP) for Xfinity Internet & Voice service. It's capable of bonding up to 32 downstream and 8 upstream DOCSIS 3.0 channels or 2 x 2 OFDM DOCSIS 3.1 channels, providing increased bandwidth for true gigabit speed capability.

2 products in 1 - Do you have digital voice service but don't want to rent your modem? The T25 combines a DOCSIS 3.1 cable modem with a digital voice adapter to provide telephone connectivity. It also has 2 Gigabit Ethernet ports, perfect for connecting to a Wi-Fi router.

Perfect for gigabit speed plans - The T25 is capable of gigabit download speeds and is approved for Xfinity internet speed plans up to 2 Gbps.

2 products in 1

The T25 combines a DOCSIS 3.1 cable modem with a 2-line digital voice adapter for telephone service.

Save on monthly rental fees

Stop spending on monthly modem rental fees. By purchasing your modem you will ensure you have the latest technology and save money in the long run.

Quick & easy setup

With just a few quick cable connections and a visit to your ISP's activation page, you can have a lightning-fast home network up and running.

1. Connect the cables: coaxial, power, Ethernet

2. Login to xfinity.com/activate

3. Setup your devices

Capable of true gigabit speeds

With 32 downstream and 8 upstream channels, plus 2 downstream and 2 upstream OFDM DOCSIS 3.1 channels, the T25 is capable of true gigabit download speeds, making it the perfect solution for gigabit speed internet plans.

ARRIS Surfboard Docsis 24X8 Cable Modem / Telephone / AC1750 Router Certified for XFINITY - Download Speed: 1 Gbps (SVG2482AC)

ARRIS

Based on 2 reviews Check latest price

Product description

The perfect choice for Xfinity Internet & Voice subscribers! The SURFboard SVG2482AC is a DOCSIS 3.0 cable modem, with Wi-Fi speeds up to 1750 Mbps, DOCSIS speeds up to 1 Gbps and 2 telephone lines. It's the perfect solution to kick your Xfinity home network into high gear! Add a battery backup (sold separately) for guaranteed coverage during power outages. Put the power back in your control with SURFboard.

  • Three-in-one DOCSIS 3.0 Cable Modem + AC1750 WiFi Router + Xfinity telephony

User questions & answers

Question: Does anyone know if "Bridge Mode" is supported
Answer: Not sure if it's supported, per-say, however you are able to enable bridge mode on the device's interface. This disables both wireless radios and essentially gives you a pass through network connection to whatever you connect to it.
Question: How come the price is almost $20 higher when I put this item in my cart? Price jumped to
Answer: Price changes every time. Many times they only have a couple and when they are sold it jumps to the next seller. It's happened to me many times.
Question: Does this device still broadcast the the hidden and/or unhidden "public xfinity wifi" ssid
Answer: The xfinity wifi does not appear anymore since I switched to this modem. I also disabled the modems Wi-Fi in favor of a better Wi-Fi router.
Question: Is this arris surfboard svg2482ac sold by amazon carried the intel logo on the modem as the picture shown
Answer: this modem has the flawed Intel Puma 6 chipset which causes problems with streaming video and gaming. Arris knew of this problem as far back as 2015 yet they still released this piece of junk new in 2017. Avoid at all costs if you plan to use this for gaming or video streaming, it is not reliable.

Product features

ARRIS SURFBoard Internet, Wi-Fi & Voice Modem

The SURFboard SVG2482AC is a 24 downstream x 8 upstream DOCSIS 3.0 cable modem, with built-in Wi-Fi and 2 telephony ports, compatible with Xfinity internet & voice service. With built-in AC 1750 Wi-Fi, its best for cable internet speeds plans up to 600 Mbps. It also has 2 telephone lines for cable digital voice service. Add a battery backup (sold separately) for guaranteed voice service during power outages.

Netgear C6300-100NAS AC1750 (16x4) DOCSIS 3.0 WiFi Cable Modem Router Combo (C6300) Certified for Xfinity from Comcast, Spectrum, Cox, Cablevision & more,Black

NETGEAR

Based on 3 reviews Check latest price

Product description

The NETGEAR AC1750 Wi-Fi DOCSIS 3.0 Cable Modem Router provides the fastest cable speed available with an AC1750 Wi-Fi router and integrated DOCSIS 3.0 cable modem, with up to 680 Mbps. Cable Labs certified to work with all major cable Internet providers such as Cablevision, Cox, Time Warner Cable, XFINITY and more.

  • Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
  • Three-in-one DOCSIS 3.0 Cable Modem + AC1750 WiFi Router+ 4 Gigabit Wired Switch
  • Up to 680Mbps modem speed and Dual-Band AC1750 (2.4GHz & 5GHz) WiFi speed. 16x4 channel bonding/ Approved for plans up to 300 Mbps
  • DOCSIS 3.0 unleashes 16x faster download speeds than DOCSIS 2.0
  • Ideal for streaming HD videos, faster downloads, and high-speed online gaming
  • Works with Cable Internet Providers like XFINITY from Comcast, Cox, Cablevision and more (not compatible with Cable bundled voice services)
  • System requirements : Microsoft Windows 10, Vista, XP, 2000, Mac OS, UNIX, or Linux

Product features

WiFi Speed

High speed AC1750 WiFi provides the super-fast speed for online gaming and 4K video streaming.

Range ( Beamforming+)

NETGEAR Beamforming+ extends your WiFi coverage, reduces dead spots, and delivers stable WiFi connection for voice and HD video to your devices.

Channel Bonding

Like lanes on a highway, channels carrying data get congested during peak hours. The more channels you have the faster you go. C6300 supports 16x4 downstream channels.

ISP Compatibility

C6300 is certified to work with all the Major Internet cable providers. Contact your provider for more compatibility information.

Advanced Parental Controls

Website content filtering Parental Controls will provide you peace of mind and protect your kids from accessing inappropriate sites.

Guest Network

Easily create a separated secure WiFi network for your visitors and guests.

Gigabit Wired Connection / USB Media Sharing

Connect your gaming console or PC via Gigabit Ethernet for 10X faster than standard internet speed. Access USB storage and stream media via WiFi with ReadySHARE.

Genie App Management

Run your network on your smartphone phone. Manage your WiFi setting simply via the NETGEAR genie app.

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