Best Docsis 3.0 Modem for Comcast

Best Docsis 3.0 Modem for Comcast – Sadly, many internet service providers (ISPs) charge a monthly leasing fee– sometimes as high as $15– that can stack up after a while (not all ISPs have this fee though). Buying your own compatible modem, however, is a great way to eliminate this unneeded cost. Within a year, you will start recovering the cost of the modem.

That being said, there are some– tedious– things you should be aware of. For instance, modems are only supported by specific ISPs. For this article, we will be discussing the best cable modems for DOCSIS 3.0 and DOCSIS 3.1 in this article, which is the main protocol used for cable internet.


1.NETGEAR C6300-100NAS

The C6300-100NAS Dual Band Wireless-AC1750 Wi-Fi Cable Modem Router from NETGEAR eliminates the need for a separate cable modem and router. This single device contains an integrated CableLabs certified DOCSIS 3.0 modem along with a 4-port Gigabit Ethernet 802.11ac Wi-Fi router. By combining the cable modem with the router you no longer need to purchase a separate router or rent a cable modem from the cable company.

With dual band Wi-Fi connectivity the C6300 from NETGEAR operates on both the 2.4 GHz and 5 GHz frequencies effectively eliminating most of the interference experienced with traditional 2.4 GHz wireless routers. In addition to dual band functionality, this router features 802.11ac connectivity for a total bandwidth of up to 1750 Mbps. You can also connect Ethernet enabled devices to any of the four Gigabit Ethernet ports for a reliable wired connection.

2.ARRIS SURFboard SB8200

The SURFboard SB8200 uses newer DOCSIS 3.1 technology to support download speeds up to 2,000 Mbps (or 2 Gbps).3 That’s perfect if you’re rocking Xfinity’s Gigabit internet plan—or if you’re running your home business on its 2,000 Mbps Gigabit Pro plan.

We’ve recommended ARRIS’s SURFboard routers before, so it’s no surprise to us that the SB8200 made it into our top-five lineup.


NETGEAR CM1000 is also one of the latest cable modems, despite supporting DOCSIS 3.1, it’s not exactly a high-speed modem offering slower transfer rates than the DOCSIS 3.1 ARRIS SB8200. The company could have made this product better by using better Ethernet ports, as the current limitation for the DOCSIS 3.1 connection in this product is the 1 Gbps Ethernet ports.

If the Ethernet ports would have provided better transfer rates, then a maximum transfer rate of 6 Gbps could have been achieved. This isn’t a huge deal since internet speeds will still only rarely meet this standard, but all things being equal this costs more for less speed than the SB8200.

4.NETGEAR (CM1150)

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.


This Motorola cable modem provides the functionality of both the modem and the WiFi router, which makes the Motorola MG7540 attractive to many consumers. After all, not a lot of people want to use two devices. The modem is bundled with an AC1600 dual-band WiFi router, i.e. it works in both 2.4GHz and 5.0GHz mode.

This DOCSIS 3.0 modem provides 16 downstream channels and 4 upstream channels, which is enough for most of the users. As far as the router interface is concerned, it provides four Ethernet ports along with the listed dual-band WiFi and also has other router features like Firewall.

6.ARRIS Surfboard SB6183-RB

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.


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 Docsis 3.0 Modem for Comcast – Cable modems are required for the modulation and demodulation of the signals with Aux cables as the interface. In layman’s terms, the modem (not to be confused with the router) changes the signal so you can receive internet.