Electronic device having a printed circuit board

An electronic device, comprising:

• a housing which has two side walls which are spaced apart from one another along an apposition direction and form an accommodation space between them;
• a printed circuit board which is insertable into the accommodating space of the housing along an insertion direction pointing transversely to the apposition direction and, in a mounting position, is accommodated in the accommodating space in a position perpendicular to the apposition direction and has a side edge extending along the insertion direction;
• and
• at least one attachment part which has at least one engagement receptacle by which the at least one attachment part is attachable to the side edge of the printed circuit board and, in an attached position, is connected to the printed circuit board,
• wherein the at least one attachment part has two first guide devices configured to guide on second guide devices of the side walls, and
• wherein the at least one attachment part is integral with the printed circuit board and mountable together with the printed circuit board on the housing such that when the printed circuit board is inserted into the accommodating space, the at least one attachment part is displaceably guided along the insertion direction by the first guide devices on the second guide devices of the side walls of the housing and, in the mounting position, positively connects the side walls to one another.