ESXi 8.0 Key:
HG00K-03H8K-48929-8K1NP-3LUJ4

ESX 6.7 Key:
4M02N-6XJ91-28T8M-0L82K-2JCKM

ESXi 7.0 Key:
45404-8CJ97-581G9-0C102-A1MJ0

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ESXi 7 Scale-Out (Vollgaser):
MA6DA-4LL1K-08ED9-KJA7M-CL034