The invention relates to a device for inserting, collecting or collating a plurality of flexible, planar products, preferably printed products, wherein the device (10, 10a, 10b) comprises a product collection unit (12, 12a), a first processing unit (14, 14′), and a second processing unit (16, 16′, 16′) for the synchronized processing, for example feeding, of products. The product collection unit (14, 14′) comprises a main drive controller (18), which is operatively connected to a main drive (20, 20′) for driving a conveying means (22). The first processing unit (14, 14′) comprises a first drive controller (24, 24′), which is operatively connected to a first drive (26, 26′, 26′), and the second processing unit (16, 16′, 16′) comprises a second drive controller (28, 28′, 28′), which is operatively connected to a second drive (30, 30′). The first processing unit (14, 14′) additionally comprises a first data collector (34, 34′), which is connected to the main drive controller (18) and to the first drive controller (24, 24′) via a first data bus (32, 32′), while the second processing unit (16, 16′, 16′) comprises a second data collector (36, 36′), which is connected to the first drive controller (24, 24′) and the second drive controller (28) via the first data bus (32, 32′).