SIMATIC STEP 7 Professional V19 Combo upgrade V11..V18-> V19 or V17/2021 Combo..V18/2021 SR1 Combo-> V19/2021 SR2 combo floating license; engineering software in TIA Portal; software and documentation on DVD; license key on USB flash drive; 9 languages: de,en,zh included, fr,es,it,ru,ja,ko as download; for configuration of SIMATIC S7-1200/1500, SIMATIC S7-300/400/WinAC, SIMATIC Basic Panels SIMATIC Unified Basic Panels. -- for system requirements specification, see www.siemens.com/compatool -- content: set (4x DVD + 1x USB)