Disclosed is an electrical connector adaptor, an electrical assembly, and a process of connecting an electrical assembly. The electrical connector adaptor includes a housing, a mechanical latch positioned on the housing, terminals arranged and disposed within the housing, and a terminal retention device configured to retain the terminals within the housing. The mechanical latch is configured to releasably secure the housing to a first electrical connector. The electrical connector adaptor permits electrical connection between the first electrical connector and a second electrical connector, the first electrical connector and the second electrical connector being otherwise incompatible.