EX525ST DLP Proj XGA 6:1 2500 Lumens 9.5LBS 1280 X 768 native resolution 2500:1 contrast ratio 16.9 native and 4:3 compatible aspect ratios Short-throw feature allows 100 diagonal 4:3 image from a distance of 4' DVI, VGA, S-Video, composite, RS232, RJ45 and USB input