Model Number : DTK2260KO-CK Display Size / Resolution : 21.5 inch (54.6 cm) / Full HD 1920 x 1080 Displayable Colors (maximum) : 16.7 million Color : Gamut 72% NTSC (CIE1931) typical Viewing Angle : 178/178 (typ) Contrast Ratio : 1000:1 (typ) Response : 22 ms Power Consumption Power ON mode (MAX): 27 W Power sleep mode: 0.5 W or less (non-connection USB cable) Power OFF mode: 0.5 W or lower Aspect Ratio / Brightness 16:9 / 210 cd/m² (typ) (including glass), white luminance (center) 180 cd/m² (min) Color Temperature/Custom Color 9300K, 6500K, 5000K, Custom RGB Connectivity HDMI port USB-A port Pen Battery-free Pro Pen 2 with 2 customizable side switches and 8,192 pressure levels in both pen tip and eraser (patented electromagnetic resonance technology) Pen Tilt Recognition / Range ±60 levels / 60 degrees Compatibility / System Requirements Windows® 7 or later (latest service ack/build), Mac OS® X 10.12 or later (latest update); Internet access for driver download