AOC P2 U27P2 LED display 68.6 cm (27) 3840 x 2160 pixels 4K Ultra HD Black. 27 inch 4 ms IPS DisplayPort 1.2 x 1, HDMI 2.0 x 2 USB 3.2 (Gen1) x 4 AdaptiveSync. The U27P2 is equipped with a wide array of features designed to help todays professionals reach their productivity potential. Its flat 27 IPS3FL screen delivers UHD 4K resolution and 350 cdm2 of brightness with a slim, elegant 3-sided frameless.