A multiport assembly comprising: a shell defining a cavity positioned within the shell; a plurality of optical adapters positioned within the cavity of the shell, the optical adapters structurally configured to receive, align, and optically couple dissimilar optical connectors; a plurality of optical connection ports comprising respective connection port passageways permitting external optical connectors to access the plurality of optical adapters positioned within the cavity of the shell, the connection port passageways comprising respective connector insertion paths, characterized in that adjacent optical connection ports of the plurality of optical connection ports are spaced apart from one another by less than 13 millimeters evaluated between a central axis extending through corresponding adjacent connector insertion paths; and a plurality of push-button securing members associated with respective ones of the connection port passageways, a plurality of resilient members each engaged with a corresponding push-button securing member, wherein the plurality of resilient members each bias the corresponding push-button securing member into an engaged position, wherein preferably each of the plurality of resilient members has a spring constant of between 10 newtons per millimeter and 50 newtons per millimeter, wherein each of the plurality of push-button securing members comprises a bore extending through the push-button securing member, each of the plurality of push-button securing members comprises a locking portion comprising a connector engagement face positioned on the bore and oriented transverse to a corresponding connector insertion path, each push-button securing member is biased in the engaged position, in which the connector engagement face of the push-button securing member is positioned within a corresponding connector insertion path, and is selectively positionable into and out of a disengaged position, in which the connector engagement face of the push-button securing member is positioned outside the corresponding connector insertion path, and the locking portion of each push-button securing member is configured to permit forcible nondestructive disengagement of an external optical connector from the locking portion of the push-button securing member upon application of a force on the external optical connector in a direction along an axis extending along the corresponding connector insertion path. a shell defining a cavity positioned within the shell; a plurality of optical adapters positioned within the cavity of the shell, the optical adapters structurally configured to receive, align, and optically couple dissimilar optical connectors; a plurality of optical connection ports comprising respective connection port passageways permitting external optical connectors to access the plurality of optical adapters positioned within the cavity of the shell, the connection port passageways comprising respective connector insertion paths, characterized in that adjacent optical connection ports of the plurality of optical connection ports are spaced apart from one another by less than 13 millimeters evaluated between a central axis extending through corresponding adjacent connector insertion paths; and a plurality of push-button securing members associated with respective ones of the connection port passageways, a plurality of resilient members each engaged with a corresponding push-button securing member, wherein the plurality of resilient members each bias the corresponding push-button securing member into an engaged position, wherein preferably each of the plurality of resilient members has a spring constant of between 10 newtons per millimeter and 50 newtons per millimeter, wherein each of the plurality of push-button securing members comprises a bore extending through the push-button securing member, each of the plurality of push-button securing members comprises a locking portion comprising a connector engagement face positioned on the bore and oriented transverse to a corresponding connector insertion path, each push-button securing member is biased in the engaged position, each of the plurality of push-button securing members comprises a bore extending through the push-button securing member, each of the plurality of push-button securing members comprises a locking portion comprising a connector engagement face positioned on the bore and oriented transverse to a corresponding connector insertion path, each push-button securing member is biased in the engaged position, in which the connector engagement face of the push-button securing member is positioned within a corresponding connector insertion path, and is selectively positionable into and out of a disengaged position, in which the connector engagement face of the push-button securing member is positioned outside the corresponding connector insertion path, and the locking portion of each push-button securing member is configured to permit forcible nondestructive disengagement of an external optical connector from the locking portion of the push-button securing member upon application of a force on the external optical connector in a direction along an axis extending along the corresponding connector insertion path.