Disclosed is a contacting unit, with plug-in card-shaped housing, having a base plate and a cover plate, between which a slit-like plug-in channel opening on one end of the housing is formed to receive a chip card, and which is provided on the other side with a connector strip, in which the plug-in channel is essentially open on both sides over its entire length in the plug-in direction of the chip card, and the base plate and the cover plate are firmly connected to each other only in the area connected to the plug-in channel in the plug-in direction, wherein at least one lateral guide device is arranged on one end on base plate and/or cover plate, which at least partially bounds the plug-in channel.