USB-A and USB-B were invented at the same time. Here’s why they’re different shapes

USB ports are a fact of life, as ubiquitous as power outlets and water faucets. Before USB-C, there was the bigger USB port we’re all familiar with that technically goes by the name of USB-A. In between the two, there’s USB-B — and I won’t blame you for never giving it any thought. No one ever says “plug this into your laptop’s USB-B port.”