USB, or "Universal Serial Bus," is the go-to port for connecting all sorts of digital devices to your computer. You can't swing a mousepad without hitting something that uses USB these days. But what does the USB category really entail? Well, it's a world of charging stations and charging boxes, hubs, adapters and cables of all shapes and sizes. It's also where you'll find plenty of trends in the tech world, like NVMe SSDs and Type-C chargers. There are even some weird, niche items in there, like KVM switches and wireless microphones. So whether you're a tech junkie or just need some new peripherals, the USB category is definitely worth exploring.