Electrical connector module and heat dissipation housing

A heat dissipation housing, comprising:

• a metal housing comprising a housing body comprising a disposing surface, an accommodating space and a plurality of first openings, the plurality of first openings being disposed on the disposing surface and being in communicating with the accommodating space;
• a positioning component comprising a component body and a plurality of positioning members, the component body being disposed on the disposing surface and comprising a plurality of second openings corresponding to the plurality of first openings respectively, two opposite side edges of each of the second openings being respectively connected with at least one of the positioning members;
• a plurality of heat dissipating members disposed in the plurality of second openings respectively, the plurality of heat dissipating members passing through the plurality of first openings and the plurality of second openings, each of the heat dissipating members being disposed between the two positioning members on the two side edges of each of the second openings;
• and
• a plurality of buckling members, each of which allowing each of the heat dissipating members to be connected with and positioned at the two positioning members on two side edges of each of the second openings.