An optical fiber connector includes a connector body and a submodule having a user-selectable configuration, such as a splitter or coupler. The connector body has a submodule mounting region. A first end of the connector body has a pluggable optical fiber port. A second end of the connector body has at least one body fiber guide. The submodule is releasably mounted in the submodule mounting region. The submodule has at least one submodule fiber guide aligned with at least one body fiber guide and at least one submodule fiber guide aligned with the pluggable optical fiber port. One or more optical fibers are routed through the connector body in accordance with the submodule configuration.