SIMATIC WinCC RC upgrade, from V7.X to V7.4 SP1 for SIMATIC WinCC Runtime & Configuration (RC) including options Redundancy, Server, User Archive, Web Navigator, Web NAV Load-Balancing, Web Diagnostics Client/Server, Data Monitor, Connectivity Pack, Connectivity Station, runtime/configuration software on DVD, single license, license key on USB flash drive - - content: set (2x DVD + 1x USB)