Acer B286HK ymjdpprz 28" LED LCD. White LED Backlight LCD: 28" wide Maximum Resolution: 3840 x 2160 Dynamic Contrast Ratio: 100000000:1 Horizontal/Vertical Viewing Angles (typical): 170 /160 Integrated Speakers: 2 x 2.0W Signal Connectors: DVI (HDCP) HDMI (MHL) DisplayPort 1.2 Mini DisplayPort USB 3.0 hub speaker Brightness (typical): 300 cd/m2 Response Time (typical): 2ms gray-to-gray Power Adapter: Internal Color: Black