Samsung U28D590D 28" 4K Ultra High Definition (UHD) LED-backlit Monitor (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty Sharper Viewing Angle with T-shaped Stand 1 Billion Color Support and 1ms (GTG) Response Time HDMI, DisplayPort, 3.5mm audio out 4K, 3840 x 2160 Resolution (UHD)