Did you know that Windows maintains a list of all USB storage devices ever hooked up to your machine? And it's simple to dump that list:
$Path = 'HKLM:\SYSTEM\CurrentControlSet\Enum\USBSTOR\*\*' Get-ItemProperty -Path $Path | Select-Object -Property FriendlyName, CompatibleIDs, Mfg
The result will look similar to this:
The longer the list, the more different USB storage device contacts did your computer have.