I've searched high and low but cannot find a USB eject function even where it was in my old 3D Samsung smart TV !. Online help is of no use as most talks of a settings option top right of the relevant screens, it's simply not there and no usb eject option in the main settings either
Have Samsung forgotten to add this ?
@Digitaldreams: I've looked into this for you, and the QN94A does not feature a USB eject function. Don't worry though, as you can disconnect a USB device without the need for this, although it is advisable that you avoid doing so while playing any media, or if you're using the USB device for recording.
Dissapointing !. It is generally accepted that all usb keys should be ejected before disconnection to avoid hardware or file system damage !. I have damaged usb keys a few times in the past by doing that. Please add the function back in !!