The connector that refused to die—and the economics that explain why.

Universal Serial Bus (or USB) is a versatile interface that's used in all sorts of devices — from smartphones to lifestyle products — to deliver data, power, and video signals. Most commonly, we see ...

I've got some old cords that have a micro-usb port on one end and a wall plug on the other. These are for charging mobile phones I used to have. Should I toss them or save them for future phones I'll ...