Dell P2415Q 23.8-inch 4K Ultra HD IPS LED Monitor (210-ADYZ) - Resolution: 4K 3840 x 2160, Contrast Ratio: 1000: 1 (typical), Response Time: 8ms, Aspect Ratio: (16:9), Brightness: 300 cd/m (typical), Connectivity: 4 x USB 3.0 downstream (Type A), USB 3.0 upstream (Type B), HDMI, DisplayPort, Mini DisplayPort, DisplayPort Out, Audio Line Out, Adjustability: Tilt, Swivel, Pivot, Height Adjustable, Wall Mountable: VESA (100 x 100mm)