---
title: What is the USB?
description: USB (Universal Serial Bus) is an interface technology, consisting of a serial bus, that connects and transfers data between a host computer and peripheral devices. USB was originally designed to integrate computers and telephones, USB operates under a master/slave scheme…
url: "https://www.szyunze.com/support/what-is-the-usb/"
updated: "2023-09-30"
category: USB Flash Drive
---

# What is the USB?

USB (Universal Serial Bus) is an interface technology, consisting of a serial bus, that connects and transfers data between a host computer and peripheral devices. USB was originally designed to integrate computers and telephones, USB operates under a master/slave scheme to communicate between the host and the peripheral. Utilizing a true plug-and-play concept, the technology provides easy connection and configuration of peripheral devices without opening the computer. Depending on the device’s data requirements, USB has low-speed to super-speed capabilities. Since its inception, USB has had four major consumer versions: USB 1.0, USB 1.1, USB 2.0, and now [USB](https://www.szyunze.com/product/fingerprint-encrypted-aes256-bit-3-0-usb-flash-drive/) 3.0