Originally Posted by
Bald Paul
Thankfully, USB-C seems to be the new standard. I can't tell you how many times I tried to jam one of those mini and micro connectors in upside down. On the units I have that use them, I paint a white dot on one side of the connector, and one on the unit. Line up the dots and connect.
On quality USB cables (cheap ones probably not) the USB symbol (the one with the 3 dots connected to big one) is either embossed or inked onto the top of the connectors. The downside is there are manufacturer's who mount the port upside down.