Before USB appeared, the computer was equipped with a serial and parallel port to connect to other devices or simply transfer data. Each port is used for peripherals such as keyboards, mice, joysticks and printers.
Sometimes, we need to add expansion cards and special drivers to connect devices. Parallel ports transfer data around 100 kilobytes per second, while serial ports range from 115 to more than 450 kilobits per second.
Some ports cannot run simultaneously. this obstacle was resolved with the introduction of USB technology. The first USB technology was developed in 1994, co-created by Ajay Bhatt from Intel and USB-IF (USB Implementers Forum, Inc.).
The organization consists of industry leaders such as Intel, Microsoft, Compaq, LSI, Apple and Hewlett-Packard. It supports and adopts comprehensive specifications for all aspects of USB technology. Since its introduction, this technology has continued to grow, from USB 2.0 to USB 3.0.
Of course, the improvements offered are data transfer rates and other benefits. Now, USB Promoter Group plans to release USB 4.0. The specifications of the next generation USB technology have also been disseminated through the internet, like what?
In detail, this new standard is based on the Intel Thunderbolt protocol. Not only that, USB 4.0 also supports various interesting features in it, including data transfer speeds of up to 40 Gbps, screen interfaces, and power delivery.
The new interface is said to still retain the USB Type-C connector and will maintain compatibility with USB 2.0, USB 3.2, and the Thunderbolt 3 interface. Additionally, USB 4.0 will support maximum data transfer speeds of 40 Gbps through 40 Gbps certified cable.
USB Promoter Group is expected to ratify USB 4.0 in mid-2019. By the scheduled release, more than 50 companies are reported to be actively participating in the final stages of developing the USB 4.0 specification.