Because Broadcom (which acquired VMware) has recently overhauled its licensing model—moving toward a subscription-based system —legacy keys are no longer officially sold. Managing Legacy Licenses
is that it is a legacy hypervisor that has officially transitioned from a production tool to a "homelab" curiosity. The Legacy of ESXi 5.5 vmware esxi 55 license key 14k
Select in the top right and choose Assign a new license key to this host . Enter your 25-character key and click OK . vmware esxi 55 license key 14k
If you're experiencing issues with your license key: vmware esxi 55 license key 14k