Thecus N2810 Series User Manual page 151

Copy all USB files to folder below:
If you select "Copy all USB files to folder below", then please choose the target
path from the drop-down list. All files and folders on the USB device will be copied
over to the NAS.
User defined:
By applying the USB Copy service in user defined mode, the additional USB Copy
tab will appear, click on USB Copy to add new task.
There are 2 options available: "USB to NAS" and "NAS to USB", following the
steps below to complete the setting.
1. Choose direction and input task name then click next.
2. Choose USB device which has been installed on the system then select
folder(s) to copy.
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