Why This Matters
This USB cheat sheet clarifies the various USB standards, their speeds, and cable configurations, helping consumers and industry professionals better understand compatibility and performance expectations. As USB technology continues to evolve rapidly, understanding these details is crucial for optimizing device connections and ensuring future-proof setups.
Key Takeaways
- USB standards range from USB 1.1 to USB4, with speeds up to 40Gbps in USB4 Gen 3×2.
- Cable wiring complexity varies, with 4, 8, and 12-wire configurations supporting different lane counts and speeds.
- Understanding generation naming and lane usage helps in selecting the right cable and port for optimal performance.
May 05, 2022
USB Cheat Sheet
I spend time investigating a non-existing bug today because I misunderstood a USB term. So I made myself a cheat sheet. Maybe it will save time to someone.
Marketing Name Also Known As Signal Gbps Signal MiB/s Wires Cable USB 1.1 Full Speed 12 Mbps 1.5 MiB/s 4 4m USB 2.0 Hi-Speed 480 Mbps 60 MiB/s 4 4m SuperSpeed USB 5Gbps USB 3.0
USB 3.1
USB 3.2
USB 3.1 Gen 1
USB 3.2 Gen 1
5000 Mbps 625 MiB/s 8 3m SuperSpeedPlus USB 10Gbps USB 3.1
USB 3.2
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