Awareness | USB Connections Explained

Understand the fundamentals of USB connections and how they impact your device operations.

Updated at November 17th, 2023

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Table of Contents


How USB Works

USB technology uses a four-wire bus that consists of two power wires and two data wires. The power wires supply power to the devices, while the data wires transfer information between the devices and the computer.

Host | Hub | Peripheral

  • Host: PC, or other main controller.
  • Hub: Allows for additional connection points to the USB bus.
  • Peripheral: Entities which provide capabilities to the bus.