Brightness of 2700 LumensXGA (1024 x 768) Native Resolution Short 0.54:1 Throw RatioHDMI, 2 VGA, Composite + S-Video InputsUSB for PC-Less PresentationConnect up to 50 DevicesWorks with Optional Wi-Fi DongleMic Input + Built-In 16-Watt SpeakerEthernet + Network Management Software