A connector assembly comprising: a housing having a housing cavity and module latches; and contact modules, each contact module having first and second module cavities (210, 212) extending between a front end and a rear end of the contact modules, and each contact module has a plurality of walls with an open mating end for receiving a mating terminal, each contact module having an unshielded twisted pair circuit, the UTP circuit including first and second signal wires (220, 222) and first and second terminals (230, 232) terminated to the first and second signal wires, the signal wires being twisted along a length of the first and second signal wires, the UTP circuits being pre-loaded into the first and second module cavities (210, 212) of the contact module prior to the contact module being loaded into the housing cavity, characterized in that the housing has a plurality of housing cavities extending between a mating end and a loading end, the module latches being associated with corresponding housing cavities; the contact modules are received in corresponding housing cavities, each contact module being held within the corresponding housing cavity by the corresponding module latch; the contact module has a primary latch surface for securing the first and second terminals (230, 232) in the first and second module cavities (210, 212), and the contact module has a secondary latch for securing the first and second terminals in the first and second module cavities, wherein one of the walls includes the primary latch surface for interfacing with at least one of the first and second terminals (230, 232), wherein one of the walls includes the secondary latch for interfacing with at least one of the first and second terminals, and wherein one of the walls includes a protrusion for interfacing with the corresponding module latch; and the first and second terminals (230, 232) comprise a latch configured to engage the primary latch surface of the contact module, and a secondary recess configured to receive the secondary latch of the contact module. a housing having a housing cavity and module latches; and contact modules, each contact module having first and second module cavities (210, 212) extending between a front end and a rear end of the contact modules, and each contact module has a plurality of walls with an open mating end for receiving a mating terminal, each contact module having an unshielded twisted pair circuit, the UTP circuit including first and second signal wires (220, 222) and first and second terminals (230, 232) terminated to the first and second signal wires, the signal wires being twisted along a length of the first and second signal wires, the UTP circuits being pre-loaded into the first and second module cavities (210, 212) of the contact module prior to the contact module being loaded into the housing cavity, characterized in that the housing has a plurality of housing cavities extending between a mating end and a loading end, the module latches being associated with corresponding housing cavities; the contact modules are received in corresponding housing cavities, each contact module being held within the corresponding housing cavity by the corresponding module latch; the contact module has a primary latch surface for securing the first and second terminals (230, 232) in the first and second module cavities (210, 212), and the contact module has a secondary latch for securing the first and second terminals in the first and second module cavities, wherein one of the walls includes the primary latch surface for interfacing with at least one of the first and second terminals (230, 232), wherein one of the walls includes the secondary latch for interfacing with at least one of the first and second terminals, and wherein one of the walls includes a protrusion for interfacing with the corresponding module latch; and the first and second terminals (230, 232) comprise a latch configured to engage the primary latch surface of the contact module, and a secondary recess configured to receive the secondary latch of the contact module.