The DOCSIS 3.1 cable service is a new industry development for cable connectivity at Gigabit speeds through the existing coaxial cable infrastructure. It was released in October 2013 and has updated several times.

Initially, this router has been launched to the market for sale online and through stores, for users of the Xfinity service of the North American operator Comcast.

Thanks to this DOCSIS 3.1 cable modem router, not only we can enjoy the maximum speed of arrival of the Internet connection, but also Wi-Fi with speeds of up to 3.2 Gbps in simultaneous dual-band with a quad-stream architecture that It dramatically increases the range of Wi-Fi through the use of active antenna technology, ideal for use with mobile devices.

It also incorporates Beamforming + technology for the 2.4 and 5 GHz bands, which gives it greater speed, reliability and reach for mobile Wi-Fi devices.

Direct application for DOCSIS 3.1 cable modem router

DOCSIS 3.1 Uses:

It is designed for both domestic and professional use, improving performance in tasks such as streaming, downloads, gaming or video conferencing. To increase the speed in streaming tasks, we have 2 × 2 OFDM / OFDMA in DOCSIS 3.1 and channel link in DOCSIS 3.0 mode.

Inside, we find a powerful dual-core microprocessor running at 1.5 GHz and four high-performance active antennas that have a proprietary design of Netgear pending patented, and that allows the improvement in the reception of weak signals and reduction of the interferences.

We also have four Ethernet ports for the connection of wired devices, and two USB 3.0 SuperSpeed ports that allow us to connect and share storage units, and transmit power to those same units.

DOCSIS 3.1 modems are compatible backward and can operate on a DOCSIS 3.0 system.

What is the best DOCSIS 3.1 Modem?

List of the best DOCSIS 3.1 Modems

  1.    ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem
  2.    NETGEAR DOCSIS 3.1 Gigabit Cable Modem
  3.    Motorola Ultra-Fast DOCSIS 3.1 Gigabit Cable Modem


The Nighthawk X4S AC3200 WiFi router cable modem (C7800) by Netgear is the first consumer to be compatible with the DOCSIS 3.1 specification, which provides Gigabit speeds.

The new C7800 from Netgear is retro-compatible with version 3.0 of the DOCSIS specification, being able to work with all the speeds of the tiers. Thanks to this, it allows using the cable connection at the current speed, being prepared for future use with the new high Gigabit speeds provided by version 3.1 of the specification.

Is DOCSIS 3.1 fast?

Every time we have faster connections available in our country. The rapid deployment of fiber optic that has placed us in the world top 5 has been significant. USA has the most extensive fiber to the home network (FTTH) and more than 60% of those who surf the Internet already enjoy connections of more than 30 Mbps.

But who offers more speed? Next, we tell you about who are the fastest Internet connections in the USA, their prices and features.

The USA speed ranking has changed considerably in recent months with the launch of different offers and speed from the various operators. Since Comcast and AT&T led with 1000 Mbps (or 1 Gbps) of maximum speed, several operators have signed up to offer 1 Gbps. Also, the Altice USA sets the pace and leaves behind companies like Comcast and AT&T.

The fastest Internet connections in USA (Dec 2018)

This is the collection of the fastest connections in the USA together with their prices and features:

1 Gbps, the top end connection offered by almost all

A lot has rained since the connections of 1 Gbps was a dream of the users reserved for a small group of users with coverage of minority operators. There are 4 million homes distributed throughout the USA geography, both for customers connected to the FTTH network and for customers connected to the cable HFC network.

Maximum companies have upgraded to DOCSIS 3.1 to offer 1Gbps.

DOCSIS 3.1 Certification

Cable Labs certified that the Sagemcom Fast 3890 cable media gateway meets DOCSIS 3.1 specifications in the first wave of certifications (CW 116).

Thanks to this DOCSIS 3.1 certified media gateway, cable operators can offer a multi-gigabit capability to their customers and enable a new world of ultra-wideband experiences.

The Sagemcom media gateway with DOCSIS 3.1 certification can operate both DOCSIS 3.1 and DOCSIS 3.0 32×8 simultaneously. It includes Wave 2 of the last generation of Wi-Fi 4 * 4 11ac for 5GHz and 4 * 4 11n for 2.4GHz and implements advanced wireless technology MU-MIMO.