USB Type-A

The flat rectangle everyone pictures when they hear “USB”.

Also called: USB-A, standard USB, normal USB, the rectangular one, USB 2.0.

USB Type-A plug, face on — Plug (male) - face on

USB Type-A plug, at an angle — Plug (male) - at an angle

USB Type-A socket, face on — Socket (female) - face on

USB Type-A socket, at an angle — Socket (female) - at an angle

How to recognise it

Flat rectangle, roughly 12 mm wide and 4.5 mm tall.
Only goes in one way up, though it famously takes three tries.
A white or black plastic tongue inside the metal shell.

Where you will find it

Laptop and desktop ports
Chargers and power banks
Keyboards, mice and memory sticks
TVs, consoles and car head units

What it fits

USB Type-A (SuperSpeed) Fits, slower 480 Mbps (Hi-Speed)

These are the same physical plug, so they always fit. The link runs at the slower end's speed - 480 Mbps (Hi-Speed) - because USB Type-A has no contacts for anything faster.