Extender for interconnecting male connector and female connector

An extender for interconnecting a male connector and a female connector, comprising:

• a female portion comprising a first housing and a plurality of first contacts, the first housing having a first mating face, a first abutment surface opposite to the first mating face, and two slots defined in the first mating face, the first contacts being partially exposed to the slots and having first mounting portions fixed with the first housing;
• and
• a male portion comprising a second housing and a plurality of second contacts, the second housing having a base having a second abutment surface and a pair of tongues projecting forwardly from the base, the tongues defining a plurality of positioning slits, each second contact having a contact portion retained in a corresponding positioning slit and a free end projecting outwardly beyond the second abutment surface;
• wherein
• the female portion and the male portion are fastened with each other in a back-to-back manner, the first abutment surface of the first housing confronts the second abutment surface of the second housing, and the free ends of the second contacts mate with the first mounting portions of the first contacts;
• wherein
• the first housing defines two channels at opposite ends thereof and a step portion formed at the bottom of each channel, and the second housing comprises two pairs of latches for being received in the channels and engaging with the corresponding step portions of the first housing;
• wherein
• the first housing of the female portion comprises a pair of longitudinal side portions facing the slots, one longitudinal side portion being longer than the other, wherein
• each longitudinal side portion defines a plurality of openings communicating a corresponding slot.