I order this projector base upon the very positive review . I be tire of use the traditional computer projector with it be video connector and the associate fuss with the f9 key to get the right output to the projector . this projector connect via the usb port . the projector 's software be self-contained on the unit . installation on my Mac laptop be almost instantaneous . the laptop 's desktop appear almost immediately . installation on my Windows laptop be as simple and almost as quick . the projector also permit multiple source connection , and the remote allow the operator to toggle between the video source . I receive notice of shipment on Sunday , and it arrive on Tuesday . that be incredible service .