ViewSonic VX2880ml 28-Inch 4K Ultra HD LED Monitor (3840x2160, 50M:1 DCR, HDMI (MHL), Dual DisplayPort Inputs and DisplayPort Outputs) Ultra HD 3840 x 2160 resolution; MHL connection for smartphones/tablets 1.07B colors (10-bit), 1,000:1 Contrast Ratio, 50M:1 DCR, 5ms HDMI 1.4 (MHL 2.0) x 1, DisplayPort 1.2 x 1, Mini DisplayPort 1.2 x 1 inputs DisplayPort 1.2 x 1 output for daisy-chain multiple screen productivity; Dual integrated 2W stereo speakers Flicker-Free Technology and Blue Light Filter for comfortable viewing experience