AOC U28P2U, 71,1 cm (28"), 3840 x 2160 pixels, 4K Ultra HD, 4 ms, Black, Grey AOC U28P2U. Display diagonal: 71,1 cm (28"), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Response time: 4 ms, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in USB hub, USB hub version: 3.2 Gen 1 (3.1 Gen 1). VESA mounting, Height adjustment. Product colour: Black, Grey