Abstract: An interface adapter includes an adapter body. An interface converting circuit board, a male connector group electrically connected to the interface converting circuit board, and a female connector group electrically connected to the interface converting circuit board are disposed on the adapter body. The male connector group includes a first male connector and a second male connector. The first connector and the second connector are disposed on a same side surface of the adapter body. A spacing adjusting assembly configured to adjust a spacing between the first connector and the second connector is disposed on the adapter body.