USB port speeds and their names

Introduction

This article aims to clarify confusion surrounding USB naming conventions and operating modes across different generations.

Reasons for confusion

The confusion between USB port designation and their speeds primarily stems from two main factors:

  1. Naming Conventions: The naming conventions for USB ports do not always clearly indicate their speed capabilities, leading to potential misunderstandings. For example, at a glance you may think that USB 3.2 Gen 1x1 is faster than USB 3.1 Gen 2 however it is actually half the speed.

  2. Marketing Terminology: Marketing often uses vague terms like "SuperSpeed" and "SuperSpeedPlus", which can be unclear about the actual speed.

Designations

Here we have tables that show the previously used naming designations and the new naming designations.

USB 3 Family

Previous Designation New Designation
USB 3.0 USB 5Gbps
USB 3.1 USB 5Gbps
USB 3.1 Gen 1 USB 5Gbps
USB 3.1 Gen 2 USB 10Gbps
USB 3.2 USB 5Gbps
USB 3.2 Gen 1x1 USB 5Gbps
USB 3.2 Gen 1×2 USB 10Gbps
USB 3.2 Gen 2x1 USB 10Gbps
USB 3.2 Gen 2x2 USB 20Gbps

USB 4 Family

Previous Designation New Designation
USB4 Gen 2x1 USB 10Gbps
USB4 Gen 2x2 USB 20Gbps
USB4 Gen 3x1 USB 20Gbps
USB4 Gen 3x2 USB 40Gbps
USB4 Gen 4x2 USB 80Gbps

Conclusion

Moving forward, we will adopt the new designations in our product descriptions and marketing materials to simplify understanding of port speeds. If you're still unsure about the speed capabilities of your Entroware system's ports, please contact support for further information.