Do you have a cable modem?

It’s using DOCSIS.

What Is DOCSIS?

A close up of the Technicolor E31T2V1 modem from Spectrum Internet

Corbin Davenport / How-To Geek

DOCSIS stands forData Over Cable Service Interface Specification.

This limited early cable modems to a theoretical maximum of 40 Mbps down and 30 Mbps up.

DOCSIS 3.1, introduced in 2013, made the minimum default configuration 32x8 channels.

DOCSIS 3.1 has a theoretical maximum speed of 10 Gbps down and 1.5 Gbps up.

Related:What Is DOCSIS, and Why Does It Matter When Modem Shopping?

DOCSIS 4.0 vs. DOCSIS 3.1: What’s the Difference?

The DOCSIS progression doesn’t end at DOCSIS 3.1.

DOCSIS 4.0 takes the improvements of DOCSIS 3.1 and adds full-duplex communication over the existing 32x8 channel configuration.

It retains the 10 Gbps theoretical maximum download speed but boosts the upload speed to 6 Gbps.

When Will DOCSIS 4.0 Be Available?

That said, various providers are actively running limited real-world tests around North America.

Is DOCSIS 4.0 a Fiber Internet Replacement or Alternative?

The DOCSIS 4.0 update positions cable internet providers to offer fiber-like speeds over existing infrastructure.

Will I Need a New Cable Modem?

Are DOCSIS 4.0 Cable Modems Backward Compatible?

DOCSIS 4.0 modems will be backward compatible with DOCSIS 3.1, retaining the trend of backward compatibility.

How Much Will DOCSIS 4.0 Modems Cost?

Will The Cable Company Have to Dig Up My Yard?

DOCSIS 4.0 will be delivered over the same final-mile CATV infrastructure that supports DOCSIS 3.0 and DOCSIS 3.1.