# What’s the USB trident symbol for? How to know what kind of port you have

- URL: https://talkfuse.com/story/whats-the-usb-trident-symbol-for-how-to-know-what-kind-of-port-you-have/
- Published: 2026-08-15T14:30:00+00:00
- Updated: 2026-08-15T14:49:16+00:00
- Original publisher: Engadget
- Original article: https://www.engadget.com/2234239/what-usb-trident-symbol-for-how-to-know-port-type/
- Topics: Gadgets

## Key points

- The trident alone usually means USB 2.0.
- USB labels reveal transfer speed more reliably than colours.
- Port colours can indicate charging, but vary by manufacturer.

## Summary

USB’s trident symbol indicates a USB connection, but on its own it usually refers to older USB 2.0 technology rather than revealing every capability of a port or cable. Understanding labels, symbols and colours matters because USB connections can vary widely in data-transfer speed, charging ability and display support, affecting which accessories work best with a computer.

USB 2.0 offers up to 480Mbps and is suitable for low-speed devices such as keyboards and mice. Later versions originally called USB 3.0, 3.1 and 3.2 provide 5Gbps, 10Gbps and 20Gbps respectively, now marketed by speed; their symbols may include ‘SS’ and a number. Black or white commonly denotes USB 2.0, blue usually indicates 5Gbps, while red or yellow ports may supply power when a computer is off, though colour conventions are not fully standardised.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.