Last seen: date of the last time the device was plugged in on an SES Evolution agent,
First seen: date of the first time the device was plugged in on an SES Evolution agent.
Description: custom comments that you added when you modified the device in SES Evolution,
Not all columns are displayed by default. To show additional columns, right-click on the row of column headers and select the ones you want to display.
In the Filters area, select the USB devices that you wish to show in the list by filtering them according to their current and/or desiredtrust level. Click on Reset filters at the top right side to display all USB devices again.