The OPTOMA's X412 4200 lumens XGA DLP projector provides brilliant images and strong dynamic contrast. Its original 1024 x 768 resolution clearly displays data and images at a variety of viewing distances, and its 50,000:1 dynamic contrast ratio helps dark images have more depth. With a throw ratio of 1.94 to 2.16:1, you may set the projector far away from the screen without losing focus. The X412 has multiple inputs including HDMI and MHL, this projector is ideal for connecting HDMI dongles such as the Google Chromecast and the Optoma HDCast Pro enabling you to connect your laptop, PC or Blu-ray player.