Here is a handy bit of PowerCLI to return the VMhost Name, Product, ESXi build, Serial number of all hosts in vCenter.

 

Run below syntax on powercli to get the VMhost Name, Product, ESXi build, Serial number of all hosts in vCenter.

Get-Vmhost | Get-View | Sort-object Name |

select Name,

@{N='Product';E={$_.Config.Product.FullName}},

@{N='Build';E={$_.Config.Product.Build}},

@{Name="Serial Number"; Expression={($_.Hardware.SystemInfo.OtherIdentifyingInfo | where {$_.IdentifierType.Key -eq "ServiceTag"}).IdentifierValue}}

OR

Get-VMHost | Get-View | Select Name, @{l=”SerialNumber”; e={$_.Hardware.SystemInfo.OtherIdentifyingInfo.IdentifierValue.split(“,”)[0]}}