Powershell to transfer a large file

import-module bitstransfer

$Job = Start-BitsTransfer -Source c:\largefile.bak `
       -Destination Z:\ -Asynchronous
while (($Job.JobState -eq "Transferring") -or ($Job.JobState -eq "Connecting")) `
       { sleep 5;} # Poll for status, sleep for 5 seconds, or perform an action.
Switch($Job.JobState)
{
 "Transferred" {Complete-BitsTransfer -BitsJob $Job}
 "Error" {$Job | Format-List } # List the errors.
 default {"Other action"} #  Perform corrective action.
}