Acer EK1 EK321QK bmiipx. Display diagonal: 80 cm (31.5"). Display resolution: 3840 x 2160 pixels. HD type: 4K Ultra HD. Display technology: LCD. Response time: 4 ms. Native aspect ratio: 16:9. Viewing angle. horizontal: 178°. Viewing angle. vertical: 178°. Built-in speaker(s). VESA mounting. Product colour: Black
