Gaming PC

USB 3.2 and 3.1 Explained: What’s Gen 1, Gen 2 and Gen 2×2?

USB 4 may be the latest and fastest generation, but the most common USB ports on PCs and peripherals, specifically USB 3.2 or USB 3.1 or 3.0, have a “3” in their version number. If you’re looking at the spec sheet, you’ll also see a generation number after USB 3.2 or 3.1. For example, USB 3.2 Gen 1, USB 3.2 Gen 2, and even USB 3.2 Gen 2×2. Yet some ports with different version numbers are actually the same speed! Still confused?

Luckily, once you understand all the confusing decimal numbers and generation numbers, it’s easy to determine what speeds you can expect from your USB ports, cables, and devices. It is enough to know the terminology outlined below.

USB 3.2, USB 3.1, and USB 3.0 versions and speeds
USB version speed alias Connector type Same as
USB 3.2 Generation 1 5Gbps super speed usb Type A, Type C, Type B, Micro USB 3.1 Gen1, USB 3.0
USB 3.2 Gen2/Gen2x1 10Gbps SuperSpeed+ USB 10Gbps type A, type C USB 3.1 Generation 2
USB 3.2 Gen 2×2 20Gbps SuperSpeed+ USB 20Gbps type C none
USB 3.1 Generation 1 5Gbps super speed usb Type A, Type C, Type B, Micro USB 3.2 Gen1, USB 3.0
USB 3.1 Generation 2 10Gbps SuperSpeed+ USB 10Gbps type A, type C USB 3.2 Generation 2
USB3.0 5Gbps super speed usb Type A, Type C, Type B, Micro USB 3.1 Gen 1, USB 3.2 Gen 1

USB 3.2 vs. USB 3.1 and USB 3.0: What’s the difference?

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