diff --git a/mtda/main.py b/mtda/main.py
index 47d37aea..8fdb58a5 100644
--- a/mtda/main.py
+++ b/mtda/main.py
@@ -917,8 +917,14 @@ def _target_off(self, session=None):
         self.exec_power_off_script()
 
         result = True
+
+        # cut power and wait a few seconds before shutting down
+        # our interfaces (keyboard, console, USB gadget, etc.)
         if self.power_controller is not None:
             result = self.power_controller.off()
+            time.sleep(3)
+
+        # shutdown our gadgets
         if self.keyboard is not None:
             self.keyboard.idle()
         if self.console_logger is not None:
@@ -926,6 +932,8 @@ def _target_off(self, session=None):
             if result is True:
                 self.console_logger.pause()
         self._composite_stop()
+
+        # send power-off event to clients
         self._power_event(CONSTS.POWER.OFF)
 
         self.mtda.debug(3, "main._target_off(): {}".format(result))