The 1 to 3 DisplayPort 1.4 MST Splitter can boost your productivity by connecting up to three DisplayPort displays to a single DisplayPort output with MST (Multi-Stream Transport) Technology.Mirror Mode: Clone or duplicate the display. so the same image appears on each monitor. This is useful in settings such as retail environments; arrival & departure boards in airports. bus terminals and train stations; video presentations in classrooms. auditoriums and multiple information booths at trade shows.Extended Mode: Boost productivity. Display a different image on each monitor whilst they still function as separate displays. Extending your workspace makes multitasking a lot easier as you are able to view multiple documents at once.