Acer K330 - Manual (Page 23)

21
English Display over USB
Display over USB (DoUSB) projection is an easy-to-use function to project a
computer's screen using a single USB cable (USB type A to mini USB) without
needing any drivers.
Set the projector source to USB B. Connect the USB cable to the miniUSB of
projector and USB type A of the computer. Detect the computer and screen will
be automatically projected out.
If you unplug the USB cable, the projector will stop projecting.
Note: Only one computer can be connected at a time.
Note: Support USB projection under windows OS.