The Sceptre C248B-144RN is a 24? Full HD Curved Monitor that embraces all the speed and features that gamers crave. Featuring an incredible 144Hz refresh rate, fast moving visuals pose no problem for the C248B-144RN. For added competitive edge, choose between FPS and RTS game modes to access custom settings that enhance gameplay. 24" Curved Gaming Monitor 1920 x 1080 Resolution Up to 144Hz Refresh Rate AMD FreeSyncTM Compatible DisplayPort, HDMI, Audio Out Jack Dimensions With Stand (Inches) 21.5" x 5.4" x 15.6" Without Stand (inches) 21.5" x 2.8" x 12.8" Packaging Dimension (inches) 22.91? x 4.48? x 15.31?. HDMI Input - HDMI 1 (144Hz) / HDMI 2 (120 Hz). DisplayPort Input - 1 x DisplayPort (144Hz). Digital Signal Frequency - 31 - 165 kHz (Horizontal) / 49 – 144 kHz (Vertical). The brightness is 250 cd/m2