Summary of Explaining USB: From 1.0 to USB4 V2.0

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00:00:00 - 00:10:00

The YouTube video "Explaining USB: From 1.0 to USB4 V2.0" provides an overview of the various USB specifications and their corresponding data transmission speeds. USB 4 uses type-c connectors only and initially operated at a theoretical 40 gigabits per second. However, in September 2022, version 2.0 of the USB standard was announced, doubling the theoretical speed to 80 gigabits per second.

  • 00:00:00 USB is a standard for connecting computers and peripherals. USB 1.0 was released in January 1996, and USB 2.0 was launched in October 2000. USB 2.0 remains in widespread use. In 2001, USB on the Go was released, which allowed for USB communication between a host and a peripheral. Today, there are six different USB specifications in use.
  • 00:05:00 The table on the video shows the different versions of USB and their corresponding data transmission speeds. USB 3.1 can transmit data at 10 gigabits per second, but only using a type-C connector. USB 3.0 is now known as USB 3.1 Gen 1.
  • 00:10:00 USB Type-C is a connector standard that allows devices to connect to ports on computers more easily. USB 4 uses type-c connectors only and initially operated at a theoretical 40 gigabits per second. However, in September 2022, version 2.0 of the USB standard was announced, doubling the theoretical speed to 80 gigabits per second. This equates to 600 gigabytes a minute, which is staggeringly fast for a consumer connector. USB 4 also supports PCIE Express DisplayPort 1.4, alternate mode, and Thunderbolt 3, which uses the same type-c connector. Since version 1.0 of USB connectors were able to supply electrical power, the current increased to 900 milliamps, the USB 3.0 and 1.5 amps. However, these are the general USB power specifications and in July 2012, an additional standard called USB power delivery or USB PD was released and this allows pdaware USB connectors to negotiate for and provide higher currents and voltages. USB PD has been updated on many occasions, with the latest version issued in July 2022. This supports two power ranges: the standard power range which can deliver up to 5 amps at 20 volts equating to 100 watts, and an extended power range which via a USB type-c connector

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