WINCC/PROAGENT UPGRADE V7.X -> V7.4
Reference : 6AV6371-1DG07-4AX3
WinCC/ProAgent upgrade from V7.X to V7.4 for SIMATIC WinCC V7.4, Runtime software on CD-ROM, Single license license key on USB flash drive ******************************* Content: Set (1x DVD + 1x USB)