I bought this projector, I always come across in my many lectures at home and abroad on technology that is not working. With this projector I need no more cables to connect to my computer. I set up the projector where no one will disturb him. I am not a technician (but only one user), but the performance of the projector exceed all my requirements. And all lecture notes, document camera and projector easily fit in a flight case. I have these purchases are no regrets today and would highly recommend both the projector and the document camera.