Samsung U28D590D 28-inch 4K UHD (3840 × 2160) Monitor 

Description

Screen Size: 28 inches (16:9 widescreen)
Resolution: 4K UHD (3840X2160p)
Panel Technology: TN (Twisted Nematic) LCD panel
Response Time: 1 ms (Gray-to-Gray)
Refresh Rate: 60 Hz (via DisplayPort)
Color Depth: 10-bit support (1.07 billion colors)
Brightness / Contrast: Up to 370 cd/m²; 1000:1 static contrast ratio
Connectivity
DisplayPort 1.2: Supports full 4K at 60 Hz
2× HDMI 1.4 Ports: Capped at 4K at 30 Hz due to standard bandwidth limits
Audio Out: 3.5mm headphone jack (No built-in speakers)
Condition: Factory Refurbished
Warranty: 6 Months