Hama Universal Flash Adapter

Amongst these little gizmos, this is one of the more complicated of the lot. This device is actually two separate systems; upon its side are two "PC female" sockets, and upon the top is a "hot" shoe.

The very bottom of the device has a "hot" button, which is used to trigger anything attached to the bottom PC female socket when the entire device is inserted into a camera's hot shoe and that camera is fired. Whatever cord you would use to trigger a flash from the bottom PC female socket would need a "PC male" connection on one end, and whatever connection interfaces with your flash upon the other.