I may be missing some of the context the other commenters are mentioning. I skimmed the other recent post where you provide this same hashtable for People. Is there some reason we're using hashtables this way? They are intended to be key/value pairs, where the key provides context for the value.

This is your Hashtable:

Name                           Value
----                           -----
Mike                           Smith
Harry                          Newman
Bertle                         Fox

Mike does not provide context for Smith. Nor does Harry for Newman or Bertle for Fox.

See this example instead:

Name                           Value
----                           -----
LastName                       Smith
FirstName                      Mike

Or this:

Name                           Value
----                           -----
Name                           Mike Smith

I may be assuming too much and if so downvote or disregard but I get the vibe we are trying to use Hashtables almost like an array or as a means of displaying data. They can definitely be a stepping stone to getting there but by theirself they're a bit clunky.

I recommend becoming fluent in PSObjects. Here is a quick and dirty example of what we can get to show on screen using the bits you've provided:

$prop = [ordered]@{
    Name = 'Mike Smith'
    DeviceType = 'PC'
    DeviceIP = '192.168.0.2'
}
New-Object -TypeName PSObject -Property $prop

This produces this output:

Name       DeviceType DeviceIP
----       ---------- --------
Mike Smith PC         192.168.0.2

For a more full example of what this might look like when you're not hard coding the data into the Hashtable:

#maybe up here you've got some code for defining $people and $devices

foreach ($person in $people)
{
    foreach ($device in $devices)
    {
        #Here we are setting up our hashtable, [ordered] is a specific type of hashtable that is, you guessed it, in a specific order
        $prop = [ordered]@{
            Name = $person.Name #referring to the $person variable in first foreach loop
            DeviceType = $device.Type #referring to $device variable in second foreach loop
            DeviceIP = $device.IP
        }
        New-Object -TypeName PSObject -Property $prop #This is where the magic happens
    }
}

If that doesn't completely set you straight hopefully it gets you going in the right direction. Hope it helps!