What, exactly, is unintelligible about a "detachable USB gender-changer dongle"? A gender-changing adapter is one that has either a male connector at both ends

What, exactly, is unintelligible about a "detachable USB gender-changer dongle"? A gender-changing adapter is one that has either a male connector at both ends or a female connector at both ends. They're used in damned near anything involving plugs and cables - or hoses, for that matter. It's not a mystery marketing term or anything. In this case, it would be female at both ends, providing a degree of physical security when not in place (as both the USB device to be plugged in and the dongle-less computer would have male connectors), and, as described, would also act as a security dongle when attached (the USB port needs to see the dongle and have it password-activated in order to use the USB port, so a simple passthru gender-changer won't give access).