Dell Ultrasharp U2515H 1440p 25" Monitor

Dell Ultrasharp U2515H 1440p(2K) monitor in 25" size All inputs and USB ports are functioning as new HDMI and DisplayPort inputs There are couple pixels which can't show blue(second picture), hence the price. It's near the edge so I don't notice them at all. They are not dead pixels, it's just the blue subpixel that's not lighting up