Abstract: Embodiments of the present invention provide devices designed to protect the functional components of optoelectronic devices and connectors from damage. Some embodiments of the present invention provide removable plugs for various types of optoelectronic modules. Each of these plugs can include a base having two spaced apart insertion members extending from the base. Each of said insertion members can include a recess insertable within a port of the module and a coplanar first surface with at least one stepped portion extending from the coplanar first surface. The stepped portions can be sized and configured to snugly fit within corresponding structures in the modules, thus preventing debris contamination. Additional embodiments of the present invention provide end caps that protect various types of fiber optic connectors.