But the version 4.0 is nearly two times faster than the maximum speed of 3.0. Well, the 4.0 is not exactly the standard, as most electronic devices have not adapted this specific version. Once again, there are variations within these versions as well. Throughout the years we have gotten 4 common standards of USB speed – version 1.0, version 2.0, version 3.0, and the latest standard, version 4.0. When we talk about the version of a USB, we are considering the speed at which that USB connection can operate. The Thunderbolt has the potential to be even faster than Type-C. However, you will see this type of port on laptops of other companies as well. This is a special type of interface made by Intel in conjunction with Apple. Now, Apple users are familiar with another type of port, which is the “Thunderbolt”. But the latest generation of USB cable, which is Type-C, has the potential to work at much higher speeds than the older types. Remember that the speed of the connector does not depend on its type necessarily. Among these variations, you will see micro-USB and mini-USB more than the others. Of course, there are different iterations among these types.

Based on the physical dimensions, there are 3 general categories of USB.

Macbook pro 2015 thunderbolt