ViewSonic PA504W 4,000 ANSI Lumens WXGA Education & Business​ DLP Projector​ - 1280x800 - 1.21-1.57 Throw Ratio - 10W Speaker - 2x HDMI 1.4 - USB-A Service Port - Computer-in - Monitor Out - Video In - RJ45 Ethernet - Audio Out - RS323 (PA504W)