1. An electrical power connector comprising:an electrically insulative connector housing that defines a mating interface, wherein the mating interface further defines a slot, the connector housing further defining a mounting interface;
a plurality of electrical power contacts supported by the connector housing and spaced along a longitudinal direction, each of the electrical power contacts defining a mating end disposed proximate to the mating interface, a mounting end that is opposite the mating end and disposed proximate to the mounting interface, and a contact body that extends from the mating end to the mounting end, the plurality of electrical power contacts being planar and disposed perpendicularly with respect to the longitudinal direction; and
wherein each of the mating ends includes a first beam that extends from the contact body and a second beam that extends from the contact body, the first beam and the second beam disposed at opposed sides of the slot with respect to a transverse direction that is perpendicular to the longitudinal direction, such that a first substrate is configured to be received between the first beams of the electrical power contacts and the second beams of the electrical power contacts along a lateral direction that is perpendicular to each of the transverse direction and the longitudinal direction,
wherein the electrical power contacts comprise a first group of electrical power contacts alternating, along the longitudinal direction, with a second group of electrical power contacts, and wherein the mounting ends of the first group of electrical power contacts are spatially offset, along the lateral direction, relative to the mounting ends of the second group of electrical power contacts,
wherein mounting ends of electrical power contacts of the first group are adjacent to mounting ends of electrical power contacts of the second group; and
wherein each electrical power contact of the first group has a first number of mounting ends and each electrical power contact of the second group has a second number of mounting ends, wherein the first number is different from the second number.