A device configured to supply securing elements to a processing unit. The device includes at least two provision channels configured to secure elements of different types, by way of which the securing elements are conveyed into a common supply unit, and a processing channel through which the securing elements are conveyed individually from the supply unit to the processing unit. The securing elements are acted on with variable compressed air in the processing channel in order to convey the securing elements to the processing unit, the pressure of the compressed air being adjustable in accordance with the specific type of the respective securing element.