Computers

USB Decoded: All the Specs and Version Numbers

Found everywhere from charging hubs to PCs, home appliances and Raspberry Pis, the Universal Serial Bus (USB) lives up to its name. But with more than 10 different versions, a slew of connectors and a variety of transfer rates and charging capabilities, USB is also a broad set of standards that can be confusing if you don’t know what you need. 

If you look at a spec sheet for one of the best gaming laptops or best gaming PCs you might see it listed with a USB4 port, a USB 3.2 Gen 2 port and two USB 2 ports. But what does that all mean and what can you expect to get from each? We’ve got answers to help you find out what every type of USB can do.


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