Not quite the same but usb has the logo, the usb-logo on the cable goes up. A thumb drive often don't have the usb-logo but determining up is often easy enough.

Not quite the same but usb has the logo, the usb-logo on the cable goes up. A thumb drive often don't have the usb-logo but determining up is often easy enough. Now "up" isn't always up, connectors on the side of a monitor for instance should often have the logo towards you since they are usually vertically mounted. With a second of thought it mostly works as expected in my eyes. But there are exceptions.