This chapter analyzes how notions of sexual difference, gender, human connectivity, and power manifest through metaphor and organizational logic in modular synthesizer patching interfaces. Drawing from media archeology and feminist science and technology studies, the modular interface is analyzed as a cultural artifact, critiquing the metaphor of “male” and “female” in patching interfaces, and “modularity” as an organizing principle. Examples are drawn from historical and contemporary interface design to technically and poetically analyze how modular interfaces suggest and subvert normative notions of bodies, connection, and power. As such, the argument is made that metaphors and logics materialized in technical design can generate new performative, expressive, and relational possibilities.