MegaPlex MG-850HD Easy Home Theater 3LCD Projector

You can connect the projector to a computer with a USB (MG-850HD only), VGA, or HDMI cable. See Connecting Computer Equipment

You can project from an iPod, iPhone, or iPad. See Projecting From an iPod, iPhone,or iPad

You can connect the projector to video equipment that support composite video, component video, RGB video, and HDMI connections. See Connecting Video Equipment

MG-850HD
You can also connect the projector to a digital camera, USB thumb (flash memory) drive, or USB hard drive. Then you can use the projector's Slide show function to display images.