SIMATIC STEP 7 Prof. V21 Combo Legacy; Upgrade V11/2010 ... V16/2017 Combo-> V21/2021 SR4 Combo; Floating License; incl. S7 PM; Engineering Software in TIA Portal; Software, documentation and license key on USB stick; 9 languages: de, en, zh included, fr, es, it, ru, jp, kr as download