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The VMware ESXi 5.5 hypervisor, while considered a legacy product by modern standards, remains a cornerstone for many homelab enthusiasts and businesses maintaining older hardware. Whether you are recovering a legacy server or building a budget-friendly virtualization environment, understanding how the license key system works for this specific version is critical.
VMware offered a "vSphere Hypervisor" (Free) edition for version 5.5. While powerful, it came with specific limitations compared to the paid "Standard," "Enterprise," or "Enterprise Plus" tiers: license key vmware esxi 5.5
The free license cannot be managed by vCenter Server. The VMware ESXi 5
Click and type in your 25-character alphanumeric string. Click OK to validate and apply. ⚠️ Important Compatibility Notes The VMware ESXi 5.5 hypervisor