Explainer / 101 1 min de lecture

L'histoire complète de l'USB : De la version 1.0 à USB4 v2.0

27 ans d'évolution USB : de 12 Mbps à 120 Gbps, du Type-A au Type-C.

## Timeline

| Year | Standard | Speed | Connector |
|---|---|---|---|
| 1996 | USB 1.0 | 12 Mbps | Type-A/B |
| 2000 | USB 2.0 | 480 Mbps | Type-A/B/Mini/Micro |
| 2008 | USB 3.0 | 5 Gbps | Type-A (blue) |
| 2013 | USB 3.1 Gen 2 | 10 Gbps | Type-A/C |
| 2014 | USB-C connector | — | Type-C |
| 2017 | USB 3.2 Gen 2x2 | 20 Gbps | Type-C only |
| 2019 | USB4 v1.0 | 40 Gbps | Type-C only |
| 2022 | USB4 v2.0 | 80/120 Gbps | Type-C only |

## Key Turning Points

1. **USB 2.0 (2000)**: Made USB the default for everything
2. **USB 3.0 (2008)**: 10x speed jump enabled external SSDs
3. **USB-C (2014)**: Reversible, universal connector
4. **USB4 (2019)**: Merged Thunderbolt 3 into USB standard

## The Naming Disaster

USB-IF has renamed standards multiple times. USB 3.0 became USB 3.1 Gen 1, then USB 3.2 Gen 1. This confusion has led consumers to distrust USB branding and rely on speed numbers (5/10/20/40 Gbps) instead.

Partie de la série "Évolution des standards : Comment USB, HDMI et autres ont évolué"

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