Dahua Technology DHI-LM27-E331A.Screen diagonal:68.6 cm (27´´), Screen resolution:2560 x 1440 pixels, HD type:Quad HD, Display technology:LED, Response time:5 ms, Native aspect ratio:16:9, Viewing ang more→le, horizontal:178°, Viewing angle, vertical:178°, VESA mount, Height adjustments, Product color:Black.