A tabletop enclosure having a fully automatic self-actuated drop-down recessing flip-top cover. After the lid has automatically, spring open it begins to autonomously recess by sliding downwardly in a smooth controlled manner into the flip-top enclosure until it is substantially recessed. According to an embodiment, the enclosure includes modular rail guides designed to receive an interchangeable combination of single, dual, or triple, sized modules, each module having easy to use alignment module rails to ease module installation. Interchangeable modules are inserted from the top of the housing frame so that the tabletop enclosure can be configured for various connectivity scenarios.