An electrical connector (400; 500) comprising: a connector housing (412; 512) including a housing body and a plurality of retention cavities (426; 526) that extend through the housing body, each retention cavity defined by two opposite inner walls (427; 527) of the housing body, each retention cavity defining cross-sectional dimension along a select direction; an array of electrical contacts (404; 504) supported by the connector housing (412; 512), the array of electrical contacts including at least two rows of electrical contacts that are spaced from each other and extend along a first direction, and at least two columns of electrical contacts that are spaced from each other and extend along a second direction that is substantially perpendicular to the first direction, each of the at least two rows of electrical contacts intersecting each of the at least two columns of electrical contacts; and each of the electrical contacts define a mating end (416; 516), a mounting end (418; 518) opposite the mating end, a respective solder ball (422; 522) fused to each of the electrical contacts (404; 504) at the respective mounting ends, and a lead portion (419; 519) that extends between the mating end and the mounting end, wherein each of the electrical contacts (404; 504) further includes a pair of retention wings (415; 515) that project out from opposite sides of the lead portion (419; 519) to respective free distal tips (415a; 515a) that are spaced from each other a distance along the select direction that is greater than the cross-sectional dimension such that the free distal tips are press-fit into respective ones of the retention cavities, characterized in that the lead portion (419; 519) is spaced from the two opposite inner walls (427; 527) along a second direction that is perpendicular to the select direction from one of the retention wings (415; 515) to the other of the retention wings (415; 515), wherein the lead portion (419; 519) is spaced from the two opposite inner walls (427; 527) along an entirety of a length of the lead portion (419; 519). a connector housing (412; 512) including a housing body and a plurality of retention cavities (426; 526) that extend through the housing body, each retention cavity defined by two opposite inner walls (427; 527) of the housing body, each retention cavity defining cross-sectional dimension along a select direction; an array of electrical contacts (404; 504) supported by the connector housing (412; 512), the array of electrical contacts including at least two rows of electrical contacts that are spaced from each other and extend along a first direction, and at least two columns of electrical contacts that are spaced from each other and extend along a second direction that is substantially perpendicular to the first direction, each of the at least two rows of electrical contacts intersecting each of the at least two columns of electrical contacts; and each of the electrical contacts define a mating end (416; 516), a mounting end (418; 518) opposite the mating end, a respective solder ball (422; 522) fused to each of the electrical contacts (404; 504) at the respective mounting ends, and a lead portion (419; 519) that extends between the mating end and the mounting end, wherein each of the electrical contacts (404; 504) further includes a pair of retention wings (415; 515) that project out from opposite sides of the lead portion (419; 519) to respective free distal tips (415a; 515a) that are spaced from each other a distance along the select direction that is greater than the cross-sectional dimension such that the free distal tips are press-fit into respective ones of the retention cavities, characterized in that the lead portion (419; 519) is spaced from the two opposite inner walls (427; 527) along a second direction that is perpendicular to the select direction from one of the retention wings (415; 515) to the other of the retention wings (415; 515), wherein the lead portion (419; 519) is spaced from the two opposite inner walls (427; 527) along an entirety of a length of the lead portion (419; 519).