Viewsonic IFP7550-E4, 190.5 cm (75"), 350 cd/m², 3840 x 2160 pixels, 1200:1, 8 ms, Multi-touch Viewsonic IFP7550-E4. Display diagonal: 190.5 cm (75"), Display brightness: 350 cd/m², Display resolution: 3840 x 2160 pixels. Operating system installed: Android, Processor frequency: 1.2 GHz, RAM capacity: 3 GB. Subwoofer RMS power: 15 W. Ethernet LAN data rates: 10,100,1000 Mbit/s. Product colour: Black, Panel mounting interface: 800 x 400 mm