Like other Netgear modems, it has a one-year warranty. The CM600 is a little on the tall side, but it's got a funky futuristic look. (There's a firmware update that resolves this issue, though ISPs roll out such updates on their own schedule.) Because of that, you can expect reliable performance from the Netgear CM600 without the lags reported by users with Puma-6-powered modems. Netgear's modem doesn't use the Intel Puma 6 chipset that's been blamed for latency issues with some other high-speed modems, such as the Arris Surfboard SB6190. Netgear's CM600 is the best cable modem for those higher speeds, though you'll pay a little bit more than you would for the CM500. If your plan promises download speeds that top 300 Mbps, you'll want a cable modem that can take advantage of that greater performance. While most homes opt for internet plans that promise speeds of around 100 to 300 Mbps, some people prefer higher-speed service. At 7.3 inches, the CM500 is a little taller than the SB6183, and we ound its indicator lights difficult to see, although at night, you may appreciate the lack of a light show. Netgear's 16 x 4 modem enjoys wide compatibility with internet-service providers, and its design makes setup a breeze. However, Netgear only offers a one-year warranty, compared with two years for those rival modems. Opt for Netgear's CM500, and you'll get a modem that's just as capable as the Motorola MB7420 or the Arris SB6183. There's actually very little performance difference among the best cable modems in our testing, so it's seemingly slight distinctions that separate these devices. (If you've got a high-speed plan, look for a faster modem.) The Netgear CM500 works with the biggest cable providers and supports speeds of up to 300 Mbps, which should be enough for the vast majority of Internet users out there. Anytime you can find a new CM500 for around $50, that's a good buy. The Netgear CM500 remains one of the best cable modems available, and you can usually find it for a $5 to $10 less than the Motorola MB7420 most of the time. That means better protection for your investment, as the best cable modems tend to last for several years. But the edge goes to Motorola because it offers a two-year warranty to Netgear's one-year of coverage. There's not much separating the Motorola MB7420 from the Netgear CM500 as both performed dependably when we tested each modem. We also found the modem easy to set up with a coaxial connector sticking out of the modem's backside at a comfortable distance from its lone ethernet port. The blue and green lights on the MB7420 are bright enough to read at a distance without turning a dark room into a laser light show at night. Its gray color should blend in well with other networking equipment. At least, the MB7420 looks stylish, with rounded corners and vented sides. The MB7420 isn't as tall as the Netgear CM500, our previous pick for the best cable modem - and still a good choice as you'll see below - though some people may prefer the more compact size of the Arris Surfboard modems. With the MB7420 at home, Phil has enjoyed steady connectivity, and that's with multiple people stuck inside, all trying to hit the internet at once. If you can find the MB7420 for $60 or less, it's hard to track down a better value.Ĭapable of supporting speeds available to a majority of home internet plans, the MB7420 is ideal for internet plans that top out at 300 Mbps. In fact, managing editor at Tom's Guide Philip Michaels has been using the MB7420 for nearly two years without a single complaint. The Motorola MB7420 is the best cable modem for most homes. Learn more about how internet speed can be affected by which cable modem you use in my article, Does a Modem Affect Internet Speed?. So we recommend getting a DOCSIS 3.1 modem. The downside to getting a modem with DOCSIS 3.0 is that it's not fully supported by Xfinity, even though it may still work. DOCSIS 3.0 is good enough for slower connections, but DOCSIS 3.1 is ideal for future-proofing performance. The different versions of DOCSIS mainly determine the speed of your Internet connection coming from the coax cable. DOCSIS 3.1 is the current standard, and DOCSIS 4.0 will be available in the future. There are multiple versions of DOCSIS available. Coax cables are the cables often used for cable TV. DOCSIS makes it possible for a cable modem to connect to the Internet by using the coax cable in your wall. DOCSIS (Data Over Cable Service Interface Specification) is the international data transfer standard for existing cable television systems (CATV).
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