a wide connector for connecting to a video cable to a display device;

a narrow connector for connecting to a computer port, wherein the wide connector is wider than the narrow connector;

an adapter body;

a wide end of the adapter body, wherein the wide connector is supported by the wide end of the adapter body;

a narrow end of the adapter body, wherein the narrow connector is supported by the narrow end of the adapter body;

a swivel joint between the wide end and the narrow end of the adapter body, wherein the wide end is rotatable with respect to the narrow end when the wide end is rotated about the swivel joint; and

a swivel mechanism connected across the swivel joint to rotatably join the wide end to the narrow end,

wherein the wide connector is parallel to the narrow connector when the swivel mechanism is rotated into a first rotational position;

wherein the wide connector is perpendicular to the narrow connector when the swivel mechanism is rotated into a second rotational position;

a first circuit board disposed within the wide end of the adapter body, wherein terminals of the wide connector are electrically connected to signal traces on the first circuit board;

a second circuit board disposed within the narrow end of the adapter body, wherein terminals of the narrow connector are electrically connected to signal traces on the second circuit board; and

a converter chip mounted on the first circuit board or mounted on the second circuit board, for converting signals from the narrow connector into signals for the wide connector,

whereby the wide connector on the wide end is able to be rotated relative to the narrow connector on the narrow end of the adapter body.