Best Gigabit Cable Modem

Best Gigabit Cable Modem – We reviewed each modem above, keeping the future trends and expected ISP speed improvements in mind. Here is a quick rundown:

If you are in the market for a standalone, high-speed modem with DOCSIS 3.1 support, the ARRIS SURFboard SB8200 is a great addition. It has passed the test of time and has excellent reviews.

In case you are only interested in a modem for Comcast packages, both voice, and the internet, the Netgear Nighthawk CM1150V comes into the scheme of things.

If you are strictly a budget user and only looking to connect a device or router to the modem, for reaching speeds up to 1Gbps, the Netgear CM1100 is the modem to consider.


1.NETGEAR Cable Modem CM1000

Want to experience multi-gig Internet speeds, both wired and wireless connections? Although there are quite a few high-end modems supporting speed limits of up to 2Gbps, the CM1000 from Netgear is strictly manufactured for accommodating ISPs that support Gig plans or speeds of up to 1Gbps.

Unlike the Nighthawk CM1000, the vanilla version comes equipped with one Gig Ethernet port. Therefore, you can only establish one wired or wireless connection using the concerned modem. Although you can always purchase DOCSIS 3.0 modem to reach comparable speeds with higher channel bonding support, the DOCSIS 3.1 technology is specifically handy for 4K streaming, video conferencing, and handling MMORPG games, and Twitch streaming.

2.Motorola MB7621

The Motorola MB7621 is reliable, supports the fastest internet speeds available to the vast majority of Americans, and offers compatibility with just about every non-gigabit plan from every cable internet service provider in the US—including Comcast Xfinity, Spectrum (formerly Time Warner, Charter, and Bright House), Cox, Suddenlink, Sparklight/Cable One, and WOW—which gives you flexibility if you move or switch ISPs.

The MB7621 works well for plans up to 600 megabits per second, because it’s a DOCSIS 3.0 modem that can handle 24 downstream channels and eight upstream channels. It also includes a two-year warranty.

3.NETGEAR Cable Modem CM600

The Netgear CM600 is a 24×8 DOCSIS 3.0 modem that supports the same performance levels as the Motorola MB7621, though it is slightly more expensive.

The biggest downside is that, although the CM600 has positive reviews from owners, it comes with only a one-year warranty, whereas most modems come with a two-year warranty.

4.ARRIS SURFboard SB8200

When you make the decision to purchase your own modem, you’re not only powering your small office or home network with the latest technology- you’re also saving a great deal of money on modem rental fees!

The Arris Surfboard SB8200 is currently one of the most popular cable modems in the market right now- and it’s all for the right reasons.

The Arris Surfboard SB8200 is a DOCSIS 3.1 modem. DOCSIS is the newest technology that is currently being offered by many cable providers.


There’s a lot to like about multipoint mesh router systems — namely, the clever way that they use range extending satellite units to sling a speedy Wi-Fi signal to all corners of your home.

The problem has always been the price. Big names like Eero and Google Wifi garnered positive reviews for their mesh systems, but buying in would set you back at least $300. Make that $400 for one of Netgear’s original Orbi two-piece mesh systems.


Netgear is the usual go-to, as they usually hit multiple checkboxes for a lot of people.

The CM1000 is DOCSIS 3.1 compliant, making it perfect for future-proofing your network, and other than the ‘more’ vague statement – this would apply to your providers like CenturyLink who are hands-off with this information – it appears to be compatible with almost every gigabit plan available, including Comcast, Spectrum, and Cox.

7.ARRIS Surfboard SBG8300-RB

If you’re not planning to get speeds higher than 1 Gbps any time soon, go for the ARRIS SB8300. This “cheap” gigabit modem still costs over a hundred dollars, but it’ll pay for itself faster than the ARRIS S33.

Like the ARRIS S33, the ARRIS SB8300 comes with two Ethernet ports, but you won’t need one unless you have two IP addresses. If you need a wired connection for other devices, use the Ethernet ports on your router.

A fun fact—when we wrote this article, the ARRIS SB8200 was the top-selling modem on all of Amazon. If you get this little pal, you’ll be in good company.


Best Gigabit Cable Modem – The best overall gigabit modem in our opinion is the Motorola MB8600. It meets DOCSIS 3.1 standards, comes with four gigabit Ethernet ports to let you boost your speeds through link aggregation, and it’s backwards compatible for DOCSIS 3.0 (the previous cable internet standard). It also comes at a reasonable price compared to other DOCSIS 3.1 modems with fewer features.