Queuing allows you to manage how many transfers will run at once: all run simultaneously, source by source, or per individual transfer.
Set the Transfer Queuing to Off, Single Source or Single Transfer
  • Off — All sources will be transferred at the same time. New transfers start while others are still running.
  • Single Source — Only transfers of a single source run simultaneously. When finished, the next source starts automatically.
  • Single Transfer — Transfers run one by one, even when from the same source.