Abstract: A portable elevator system for transporting a cargo container between a container cell and a mouth of the container cell is disclosed. The elevator includes a frame which is crane transportable and mountable on the mouth of a container cell in an open hold of the ship. A plurality of hoists are mounted on the frame. The hoists are releasably engageable with at least one container so as to transfer the container in either vertical direction through a central opening in the frame between a first location at a mouth of the container cell and a second location in the container cell. The container further includes a plurality of supports, which are releasably engageable with a container in the first location in addition to the engagement of the hoists. Additionally, a connector for connecting two adjacent containers in a single cell is disclosed. The connector is adapted to be transported to one of the two containers on one of the hoists.