USB speed refers to the data transfer rate achievable through a Universal Serial Bus (USB) connection. Different USB versions offer different speeds.
Here's a breakdown of the speeds associated with different USB versions:
- USB 1.0/Low-Speed: 1.5 Megabits per second (Mbps)
- USB 1.1/Full-Speed: 12 Mbps
- USB 2.0/Hi-Speed: 480 Mbps
- USB 3.0/USB 3.1 Gen 1/USB 3.2 Gen 1/SuperSpeed USB: 5 Gigabits per second (Gbps)
- USB 3.1 Gen 2/USB 3.2 Gen 2/SuperSpeed USB 10Gbps: 10 Gbps
- USB 3.2 Gen 2x2/SuperSpeed USB 20Gbps: 20 Gbps
- USB4: 40 Gbps
- USB4 2.0/USB 80Gbps: 80 Gbps
These speeds represent the theoretical maximum transfer rates. Actual speeds can vary depending on factors such as the devices involved, cable quality, and bus limitations.
