---
title: What is the difference between USB 1.1, USB 2.0, and USB 3.0?
description: "The primary difference between each version is data transfer rates. **USB 1.1** could operate at 12 Mbit/s and 1.5 Mbits/s. **USB 2.0** can operate at 480 Mbit/s in addition to the slower speeds. **USB 3.0** is backward compatible and can operate up to 4.8 Gbps. **USB 3.0** also…"
url: "https://www.szyunze.com/support/what-is-the-difference-between-usb-1-1-usb-2-0-and-usb-3-0/"
updated: "2023-09-02"
category: USB Flash Drive
---

# What is the difference between USB 1.1, USB 2.0, and USB 3.0?

The primary difference between each version is data transfer rates. **USB 1.1** could operate at 12 Mbit/s and 1.5 Mbits/s. **USB 2.0** can operate at 480 Mbit/s in addition to the slower speeds. **USB 3.0** is backward compatible and can operate up to 4.8 Gbps. **USB 3.0** also carries four additional wires than previous versions for bidirectional data transfers.

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