This feature is on our customer wish list, but we have no release date for it unfortunately. Development is busy getting the help desk ready for our beta testers, so any other features have low priority for now.
At the moment, Lansweeper only scans information on a limited number of USB devices, such as external hard drives, keyboards, mice and printers. These are devices with their own WMI (Windows Management Instrumentation) classes. There is a Win32_USBControllerDevice WMI class that provides limited (and not very readable) info on attached USB devices, but this class is not currently scanned.