A hot swap tray having a housing adapted to be slidably inserted in a rack. The tray includes an electromagnetic shield member mounted for rotation about an axis traversing the sliding direction of the tray. The shield has a resting state in which the shield presents a first dimension in a plane traversing the sliding direction and a deflected state in which the shield presents a second dimension in the plane, the first dimension being greater than the second dimension. The shield is actuated on insertion of the tray into the rack to move from the resting state to the deflected state so that the shield clears adjacent shields located within the rack and from the deflected state to the resting state so that the shield engages the adjacent shields.