Best High Speed Modem for Comcast – While considering buying a modem, it’s important to take note of the average internet speeds available with your internet service provider because it is only worth investing in a high-speed and a costly modem if the internet speed provided by your provider is also high speed. It is smart to buy a modem that supports the maximum internet speed provided by your internet service provider.
No one would want to replace and reinvest in a new modem again soon after buying a new modem. So, do not select extremely slow and low range or extremely cheap modems or the 8×4 modems as the internet service providers are dropping support for these 8×4 modems.
1.ARRIS Surfboard S33
- MULTI-GIG NETWORKING: The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network
- Cable internet service required. Does NOT include Wi-Fi and does not support cable digital voice service.
- DOCSIS 3.1 Cable Modem approved for cable internet speed plans up to 1.2 Gbps
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
- Connects to any existing Wi-Fi router for blazing-fast internet.
- Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others.ice.
- Stop renting your modem and save on monthly modem rental fees!
- Sleek new, modern design fits nicely into home or office
- Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
The modem provides 32 downstream channels along with 8 upstream channels for DOCSIS 3.0 and 2 OFDM downstream channels along with 2 OFDM upstream channels for DOCSIS 3.1, with maximum download speeds of 10 Gbps and upload speed of 2 Gbps. The two Gigabit Ethernet ports on the modem makes it great for esports gaming.
The customer support of ARRIS seems really bad, though. Even if the warranty period is 2 years, the company rarely accepts an RMA for the products.
- Top Internet Speeds for all Multi-gigabit Speed Tiers - Wirecutter recommends this model as the best cable modem for people using Gigabit Internet plans. Built-in DOCSIS 3.1 and DOCSIS 3.0 32x8 capabilities give top Internet speeds for all cable Internet services.
- Save Money - Eliminate up to 168 dollars per year in cable modem rental fees (Savings are shown for Comcast Xfinity and vary by cable service provider.) Approved by Comcast Xfinity and Xfinity X1, Cox, and CableOne for all speeds including Comcast Gigabit services and Cox Gigablast. Not compatible with RCN. No cable modem is compatible with fiber optic, DSL, or satellite services, available from Verizon, AT&T, CenturyLink, Frontier, and others.)
- Flexible Compatibility - Pair with any Wi-Fi router you’d like, including Whole Home Wi-Fi or Mesh routers like eero, Google Wi-Fi, and Orbi. A 10/100/1000 Gigabit Ethernet port allows connection of any SINGLE device with an Ethernet port including a router, Windows or Mac computer, HDTV, or game station. This cable modem does not have a built-in wireless router or telephone call capability.
- Proactive Network Security - A broadcom chipset provides advanced security from denial-of service attacks.
- Active Queue Management (AQM) - AQM significantly reduces Internet latency on both DOCSIS 3.1 and 3.0 services, resulting in faster page loads for all Web traffic and enhanced interactive applications like online gaming and video conferencing. The MB8600 also includes a full-band capture digital tuner to enhance speed and save energy.
The Motorola MB8600 supports up to 1,000 Mbps download speed. But since Xfinity upped its Gigabit plans to 1,200 Mbps, we suggest you use it only for Xfinity’s Extreme Pro and lower-speed plans.
If you’re living in the fast lane, you’ll appreciate how smoothly this modem streams 4K Ultra HD content and handles high-speed online gaming. And it’s durable, too, so you can expect it to keep you up to speed for years to come.
3.ARRIS Surfboard SB6183-RB
- APPROVED with Comcast Xfinity, Spectrum (Charter, Time Warner, Brighthouse), Cox and more. If not sure call your cable provider to find out if approved to use. REQUIRES Cable Internet Service. Not compatible with: Verizon, AT&T, or CenturyLink
- Cable Modem only (no WiFi router). NO support for Cable TELCO options
- Internet speeds up to 686 Mbps on 16 Download Channels and 131 Mbps on 4 Upload Channels, based on your cable ISP subscription. Approved for plans up to 400Mbps. Gigabit Ethernet port to connect to computer or router
- Great for streaming HD Video and gaming on multiple devices at a time
- 90 Day Warranty. ARRIS Certified Refurbished. US Technical support. ARRIS Certified Refurbished products will ALWAYS be branded ARRIS, Never Motorola! If you get Motorola branded product they are illegitimate, need to be returned to Seller and Reported to Amazon
While the ARRIS SB6183 runs on DOCSIS 3.0 tech—older than the DOCSIS 3.1 of the two previous devices—it’s still a zippy little modem.
If you have an Xfinity Blast! or Blast! Pro Plus plan, go for this device to get the speeds you need without forking out a ton of dough.
- ELIMINATE MONTHLY CABLE MODEM RENTAL FEES - Up to $156 per year
- DOCSIS 3. 0 Cable Modem with 1 Gigabit Ethernet port. One (1) Gigabit Ethernet port with auto-sensing technology
- Up to 340Mbps download and upload speed. Separate router required for WiFi. 8x4 channel bonding.
- DOCSIS 3. 0 unleashes 8x faster download speeds than DOCSIS 2. 0
- Ideal for streaming HD videos, faster downloads, and high-speed online gaming
- Required for the fastest cable Internet speed tiers
- Compatible with Xfinity from Comcast, Spectrum, Cox, & more. Not compatible with bundled voice services.
- Memory storage capacity: 64.0 MB
This affordable Xfinity-compatible modem is reliable and easy to install. For a bargain modem you can set and forget, it doesn’t get better than this.
Although this modem doesn’t have the latest DOCSIS 3.1 technology, it uses DOCSIS 3.0 technology at speeds most Xfinity households will appreciate. And if that techy talk has you baffled, don’t worry. We’re just saying the NETGEAR CM400 will take good care of you and your Xfinity plan.
Your favorite writer (me) uses the NETGEAR CM400 at home when I’m not testing out the Xfinity xFi Gateway. It’ll be a perfect fit for you, too, if you use Xfinity’s Performance Starter or Performance Select plans.
5.NETGEAR Nighthawk Cable
- Supports internet speed up to 2Gbps. Certified with Xfinity Internet & Voice Plans up to 800Mbps speed. Future speed with Xfinity is subject to change
- Works with any WiFi router. Connect any WiFi router to this modem’s Ethernet port to support all your wireless devices
- Save monthly rental fees. Model CM1150V replaces your cable modem saving you up to $150/yr in equipment rental fees
- Four (4) Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices
- For use with Xfinity Voice service and up to 2 telephone lines with enhanced call features including caller ID, 3 way conference calling, call forwarding and more
- Modem technology: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1
- Multi-gig Ethernet: Link aggregation combines two 1G ports into one 2G port for faster wired ethernet speed
If you’re getting a voice plan from Xfinity, the NETGEAR CM1150V will help connect your phone service as well as your internet service. Then you can call and tell all your friends about it (lol).
This modem is about as souped-up as the ARRIS S33, so it can handle Xfinity’s Gigabit plan, no sweat.
But this little baby from NETGEAR is a bit pricey, so if you’ve got a slower plan, you can save some money with another product like ARRIS SVG2482AC. This second option can handle speeds up to 600 Mbps, and it comes with a Wi-Fi router built-in too.
- Coverage up to 1,800 sq. ft. for up to 30 devices with AC1900 speed (up to 1900Mbps)
- Replaces your cable modem and Wi-Fi router, saving you up to Dollar 168/year in equipment rental fees
- Speeds by carrier: Xfinity (up to 800Mbps), Cox (up to 500Mbps), Spectrum (up to 400Mbps)
- Plug in computers, game consoles, streaming players, and more with 4 x 1G Ethernet ports
- Share a storage drive with any connected device using the 2.0 USB port
It has two integrated phone lines that support a 3-way conference call, which means that you can add a third person to your two-party conversation.
Furthermore, it also supports call forwarding. This allows you to redirect incoming calls to other phone numbers.
The modem also supports DOCSIS 3.1 technology. This, together with its 2.5G ethernet port, makes it’s capable of a staggering 2500 Mbps.
- Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
- Speeds by carrier: Spectrum (up to 400Mbps), Xfinity (up to 200Mbps), Cox (up to 150Mbps).
- Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
- Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
- Modem technology: Engineered with 16x4 channel bonding and DOCSIS 3.0.
If you don’t get Xfinity’s Gigabit plan, you can save a little money with the budget-priced NETGEAR CM500 modem. It supports wired internet speeds up to 680 Mbps.2
User reviews of the CM500 note that its installation was a breeze. So if you’re putting off getting your own modem because you’re not tech-savvy, give the CM500 a go.
Our only complaint about this modem (and all NETGEAR modems) is that it comes with only a one-year, limited hardware warranty.
Best High Speed Modem for Comcast – Modems aren’t necessarily cheap but are nevertheless a necessity in the modern age. Regardless of which internet service provider you choose, you’ll have to now how to identify the best of the best, and the best modems for Comcast enable efficient speeds at a reasonable price.