Super definition for small to medium-sized spaces. The MX812ST features 4600:1 contrast ratio, 3500 ANSI lumens, XGA resolution, 3D ready projection, interactive whiteboard capability and LAN/USB/wireless Display. The MX812ST"s short throw optics gives you an 81" image in a mere distance of 3.2 feet. Inputs: Analog RGB: D-sub 15 pin x 2 (Shared with Component), LAN Networking: RJ-45 x1 (LAN Display), USB Type A x1 (USB Reader), Type Mini-B x1 (USB Display), HDMI V1.3 x 1, S-Video: Mini Din 4 pin x 1, Composite Video: RCA x 1, Microphone: Stereo Mini Jack x1, Audio L/R : RCA x 2, Stereo Mini Jack x 1