$Users = Import-Csv "C:\temp\zzzz_Users.csv"
$Results = ForEach ($User in $Users) {
    $UserProperties = Get-ADUser -Identity $$User.Username -Properties Title,Department,Manager,MemberOf
    $Groups = ($UserProperties.MemberOf -replace '^CN=([^,]+),OU=.+$',',,,,,$1') -join "`n" -replace '^,+',''
    $Manager = Get-ADUser $UserProperties.Manager | Select-Object -ExpandProperty DisplayName

    [PSCustomObject]@{
        SamAccountName = $UserProperties.SamAccountName
        DisplayName = $UserProperties.DisplayName
        Title = $UserProperties.Title
        Department = $UserProperties.Department
        Manager = $Manager
        MemberOf = $Groups
    }
}

$Results | export-csv 'c:\temp\zzzzzz_usersmemberof.csv'