HPcode 4U; one-year limited hardwareExchange service level (Return to HP)standard statement: Except when purchased as part of a system, HP warrants your peripheral hardware product against defects in materials and workmanship for a period of one year from receipt by the end-user (proof of purchase required). If HP receives notice of such defects during theperiod, HP will either, at its option, repair or replace products that prove to be defective.