Brightness of 4400 Lumens WUXGA (1920 x 1200) Native Resolution 1.6x Zoom and 1.38 to 2.28:1 Throw Ratio Two HDMI and two VGA Inputs Composite and Analog Audio Inputs VGA and Stereo Audio Outputs Built-In 16-Watt Speaker USB Plug 'n Play + PC-Less Presentation Ethernet and RS-232 Connectivity