Optoma ZK521ST White 4K UHD Short throw projector, 5000 Lumens 0.79:1 throw ratio 6.6 lbs 2 x HDMI 2.0 (4K HDR), VGA-In, 2 x USB-A (Power / Dongle), 1 x Audio-Out 3.5mm, 1 x RS232, RJ45, 3D Sync, 12V trigger 3 Year Warranty