USB connectors

Here's some information on USB connectors from Wikepedia. I had found a pretty interesting article (which has since been removed) at TopGreener.com, about the evolution of USB connectors, ending with the USB-C connector that some of the newer phones and laptops have. I wasn’t aware of the bidirectional power feature in USB-C, which sounds like something cool that will soon be well-exploited. I forgot what the old USB-B connector was - it was nice to be reminded.