What this STEP 7 license covers
The 6ES7997-1BD00-4AX2 is a SOLUTION PARTNER STEP 7 PRO PLUS SUS license — the full STEP 7 Professional software package with a Software Update Service (SUS) contract for Siemens S7 controllers. This is the license key and SUS subscription, not a physical software DVD; the SUS entitlement keeps you on the latest service packs and version updates for the contract term.
Estimated lead time is 1-2 weeks; quoted to order against your BOM quantity through independent distribution.