Abstract: A storage product carrier for a storage rack includes a plurality of carrier supports spaced one above the other, arranged in pairs on opposite side walls of the storage rack and able to support the storage product carrier which is conveyable by an automatic storage/retrieval device and an access opening for accessing the storage product carriers has a plurality of compartments having openings. A closure is provided to cover at least one of the openings, wherein a locking mechanism is provided to lock the closure of the associated openings and wherein the locking mechanism can be controlled to lock the closure in a closed position or an open position such that the compartment becomes accessible.