A is only the host side on devices not made by total idiots. While there are a surprising number of devices that get this wrong, and I have never understood wh

A is only the host side on devices not made by total idiots. While there are a surprising number of devices that get this wrong, and I have never understood why, they are always wrong. It seems to be mostly cheap external hard drive enclosures and scanners I've seen using a type-A port for their upstream-facing port and shipping with the cursed A to A cable.