A memory system having at least one memory subsystem and using a packet protocol communicated over a command and address bus and at least one data bus. A closing unit is arranged on the frame such that when in a closing position, the closing unit holds the keeper for the purposed of keeping the door closed and, in an open position, releases said keeper for the purposed of opening the door, said closing unit, in the course of its transfer from the open position into the closing position, draws the keeper along with it. A commodity is dispensed within the plastic container.