Understanding USB
USB - Universal Serial Bus is what we use everyday without realising it’s underlying everything.
We just know we plug it and it starts working, whatever it is
Here is everything you need to know even if you care little to none :)
From Wiki
Universal Serial Bus (USB) is an industry standard that establishes specifications for cables and connectors and protocols for connection, communication and power supply between computers, peripheral devices and other computers. Released in 1996, the USB standard is currently maintained by the USB Implementers Forum (USB IF). There have been three generations of USB specifications: USB 1.x, USB 2.0 and USB 3.x; the fourth called USB4 is scheduled to be published in the middle of 2019.
Max Speed | Former Name(s) | Current Name | Marketing Name | Year |
---|---|---|---|---|
1.5 Mbit/s12 Mbit/s (Full Speed) | USB 1.0 | USB | 1996 | |
480 Mbit/s | USB 2.0 | High Speed USB | 2001 | |
5 Gbit/s | USB 3.0USB 3.1 Gen 1 | USB 3.2 Gen 1 | SuperSpeed USB | 2011 |
10 Gbit/s | USB 3.1 Gen 2 | USB 3.2 Gen 2 | SuperSpeed USB 10 Gbps | 2014 |
20 Gbit/s | USB 3.2 Gen 2 x 2 | SuperSpeed USB 20 Gbps | 2017 |
Images to follow

Different types of usb ports & jacks
