摘要 |
In order to prevent the mismating of several daughterboards (2) that are combined into a plug-in unit (20) with corresponding board connectors (3) on a motherboard (1), it is proposed that the mating of the plug-in unit (20) is effectively prevented by means of a blocking block (10) that is inserted into an intermediate space between two board connectors (3) that are spaced apart from one another by a regular connector spacing and snapped into window-like recesses (4) of the board connectors (3).
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