Dell E2421HNFeatures: Diagonal screen size: 60.47 cm / 23.8\" Resolution: 1920 x 1080 (Full HD) Aspect ratio: 16:9 Contrast ratio: 1000:1 Response time: 8 ms Brightness: 250 cd/m2 Maximum viewing angle horizontal / vertical: 178° / 178° Connectivity: 1 x HDMI 1.4, 1 x VGA Monitor is tiltable