HP Z27n. Display diagonal: 68.6 cm (27"), Display resolution: 2560 x 1440 pixels, HD type: 2K Ultra HD, Display technology: LED. Display: LED. Display surface: Matt, Response time: 14 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. USB hub version: 3.2 Gen 1 (3.1 Gen 1). VESA mounting, Height adjustment. Energy Star certified, Product colour: Black