PSObject

Code:

# Dummy Data
$name = "John Doe"
$age = 29
$gender = "Male"
$desc = "Nameless Person"

# Create an object with the given properties
$newPSObject = New-Object -TypeName PSObject
$newPSObject | Add-Member -MemberType NoteProperty -Name Name -Value $name
$newPSObject | Add-Member -MemberType NoteProperty -Name Age -Value $age
$newPSObject | Add-Member -MemberType NoteProperty -Name Gender -Value $gender
$newPSObject | Add-Member -MemberType NoteProperty -Name Description -Value $desc

Result:

PS C:\> $newPSObject

Name     Age Gender Description    
----     --- ------ -----------    
John Doe  29 Male   Nameless Person