Model : X3100i. - BenQ X3100i 4 LED Beam Projector. - Native Resolution: 4K UHD (3840×2160). - Supported resolutions: VGA (640 x 480) to 4K UHD (3840 x 2160). - Input Lag : 16.7 ms (1080P 60Hz), 16.7 ms (4K 60Hz), 16.7 ms (2K 60Hz), 4.2 ms (1080P 240Hz).