A trend in the card fulfillment industry is the processing of increasingly smaller batch sizes. To be able to carry out these individual jobs quickly, efficiently and cost-effectively, BÖWE SYSTEC (Booth 3522) has developed the mass storage device Watermill for its card mailing systems. Watermill is a modular system in which up to 1,890 or 3,780 plastic cards from different personalization jobs can be saved in random order and then brought into an optimal order for further processing. The time intensive and error prone practice of pre-sorting cards manually leading to frequent set-ups for small jobs is now eliminated. Depending on the card channel, up to six storage modules can be integrated and up to 3,780 cards can be simultaneously stored. At Print 13, the mass storage device Watermill will be shown incorporated into the card mailing system Pace.