IO-Link Master USB CDSU-1 Conforms to standard=EN 61131-9, Instructions for use=For use with the USB IO-LinkMaster Tool software (available from the Support Portal) for Windows version 7 or higher (32/64 bit)., Input voltage=(* 5 V DC at the USB connection, * 24 V DC +- 6 V via external supply), Input current=(* Max. 600 mA at the USB connection, * Max. 2.5 A via external supply), Output voltage=(* 24 V DC +- 10% with USB operation, * 24 V DC +- 6 V with external supply (max. input voltage))