The present invention relates to an attachment screed unit for a road paver, comprising a connecting screed, at least one adjusting screed which is adjustably mounted on the connecting screed and which is adjustable between a retracted position (P1) and an extended position (P2), as a result of which the paving width (b4) of the attachment screed unit can be set in a variable manner, and a hydraulic adjusting device, which is arranged in such a manner that it can adjust the at least one adjusting screed between the retracted position (P1) and the extended position (P2), the adjusting device comprising an electro-hydraulic unit which is arranged on the attachment screed unit (10), and the electric hydraulic unit comprising a separate hydraulic circuit with at least one hydraulic pump and an actuator. The present invention further relates to a road paver with such an attachment screed unit.