Connector assembly

A connector assembly, comprising:

• a first connector including:
• a first housing having a first mounting chamber formed at the rear end of the first housing;
• a first holder installed in the first mounting chamber;
• a first terminal arranged in the first housing, the first terminal including:
• a first terminal mating portion;
• and
• a first terminal extension portion passing through the first holder and a portion of the first terminal extension portion is fixed to the first holder, the first terminal extension portion and the first terminal mating portion are respectively connected to a pair of ends of a first terminal fixing portion, the first terminal extension portion extends out of a rear end of the first housing to electrically connect a first circuit board;
• and
• a plurality of first terminals;
• and
• a second connector including:
• a second housing having a second mounting chamber formed at the rear end of the second housing;
• a second holder installed in the second mounting chamber;
• a second terminal arranged in the second housing, the second terminal including:
• a second terminal mating portion that corresponds to the first terminal mating portion, the first terminal mating portion is identical to the second terminal mating portion but is inverted 180 degrees relative to the second terminal mating portion;
• and
• a second terminal extension portion passing through the second holder and a portion of the second terminal extension portion is fixed to the second holder, the second terminal extension portion and the second terminal mating portion are respectively connected to a pair of ends of a second terminal fixing portion, the second terminal extension portion extends out of a rear end of the second housing to electrically connect a second circuit board;
• and
• a plurality of second terminals that are respectively matched with the plurality of first terminals, some first terminals of the plurality of first terminals are identical to some second terminals of the plurality of second terminals, and other first terminals of the plurality of first terminals are different from other second terminals of the plurality of second terminals, one of the first terminals and one of the second terminals that are identical to each other and that match each other is inverted 180 degrees relative to the other.