Viewsonic X2-4KE Pro Standard throw projector UHD 4K (3840x2160) Black, Green

Viewsonic X2-4KE Pro. Projector native resolution: UHD 4K (3840x2160), Contrast ratio (typical): 3500000:1, Native aspect ratio: 16:9. Light source type: LED, Service life of light source: 60000 h. Focal length range: 10.2 - 12.25 mm, Aperture range (F-F): 2.53 - 2.73, Throw ratio: 0.69 - 0.83. Serial interface type: RS-232. Internal storage capacity: 8 GB