Portable office storage unit

A portable storage unit has a body; a cavity in the body; an access opening in the body for providing access to the cavity, and a door which is hingedly fixed to the body for selectively opening and closing the cavity access opening. An extensible member is slidably received in the body and movable between a retracted position and a range of extended positions for securing the unit intermediate a pair of spaced apart surfaces such as a floor and underside of a desk. A spring urges the extensible member resiliently toward the extended positions. The extensible member may be latched in the retracted position and the body has a handle for transporting the unit between sites. Electrical connectors such as communication ports or electrical receptacles may be mounted to the unit along with one or more cords for supplying current to the electrical connectors.