What are the speed of USB 2.0, USB 3.0, USB 3.1 and Thunderbolt 3 ?

Nov 26, 2019

What are the speed of USB 2.0, USB 3.0, USB 3.1 and Thunderbolt 3 ?

1. USB 2.0 (Hi-Speed) offers 480Mbit/s (effectively 40MByte/s). Connectors include: USB 2.0 Type A (computer side), the plastic of the connector interface fixed terminal is white; Type B (usually used in printers, scanners, etc.); Mini 5pin (MP3, card reader, toy, POS, etc.); Micro B ( Android phone, charging treasure, speaker, Bluetooth headset, camera, driving recorder, etc.)

2. USB 3.0 (SuperSpeed) offers 5Gbit/s (effectively 300 MByte/s). Connectors include: USB 3.0 Type A (computer side), the plastic of the connector interface fixed terminal is blue; Type B (used for high speed printers, scanners, electronic guitars, etc.); Micro B ( Android phones, mobile hard drives, cameras, industrial cameras, etc.); 20Pin (computer front panel and rear panel PCI-E baffle, connected to the motherboard via 20PIN)

3. USB 3.1 Gen 1 is same with USB 3.0 (SuperSpeed), compatible with all USB 3.0 and USB2.0 connectors.  USB 3.1 Gen 1 added the TYPE C connector, the speed has not improved, but compared with USB 3.0, USB 3.1 Gen 1 raised the power supply standard from 5V/ 0.9A to 20V/5A, and the power increased to 100W, which can greatly improve the charging speed. The most common application is faster charging of mobile phones. USB 3.1 also adds USB A/V video and audio transmission. which can be used as video output on laptops. Most of the current TYPE C interface devices are Gen 1 standard.

4. USB 3.1 Gen 2 (SuperSpeed+) offers 10Gbit/s (effectively 900 MByte/s) often comes with USB Type C connector, but could also come with USB 3.0 connectors. Only when the input, cable, and output all meet the USB 3.1 Gen 2 standard, then you can enjoy the powerful performance of 10Gbps transmission rate, 800M/s, [email protected]

5. Thunderbolt 3 is a superset of USB 3.1 Gen 2 and comes with USB Type C plug, offers in native TB3 mode 40GBit/s. It is an upgraded version of the display port and is compatible with USB 3.1 Gen 2. Also,only when the input, cable, and output all meet thunderbolt 3 standard can ultra-high speed data transmission be realized, which is generally used in video production, large video games, high-speed disk storage and so on