you can create the notification of Email for USB Device
Connect to SEPM
2. Go to "Monitors"
3. Go to "Notifications" tab
4. Click on "Notification Conditions" button at the bottom of the console
5. Click on "Add..." and select "Client Security Alert"
6. In the top of the new window, specify condition name, filtering settings (optional) and outbreak type
7. Check "Application Control Events"
8. Specify condition and damper settings
9. Check "Send email to:" and type email address to use
10. Validate
https://www-secure.symantec.com/connect/forums/notification-usb-device