Without clear labels, you can rely on colors, but remember that those aren't mandated by USB-IF, so they're not a guarantee.

If you've ever looked closely at the USB ports on your computer, motherboard, or docking station, you might've noticed they're not all the same color. Black, blue, teal... and sometimes, bright red.

Everyone knows them, everyone has them. USB sticks, or thumb drives, are ideal for quickly exchanging data between computers — but also for transporting digital content between mobile phones and PCs ...