[en] The electronic equipment designed for intermediate storage of data from DELPHI hadron calorimeter prototype and composed from buffering memory modules and controlling sequencer are described. One cascadable memory module has a capacity of 64 K byte with full access time better than 400 ns. The microprogrammable controlling device conforms to the rules of the Universal Branch Driver and besides its basic functions performs several other tasks in experimental environment. Acquisition of data from front-end electronics is conducted during accelerator spill time. Therefore dumping of accumulated data to the man computer may be accomplished in ay suitable time. This mode of operation improves a system performance in computer time-sharing regime