144HZ A gaming monitor above 144 Hz, I think it's 165 Hz. It belongs to my brother. The monitor is new and has only been used for three months. Its size is approximately 24 inches. I bought it for 500, and my final offer is 350 because it's clean, and slightly negotiable. Refresh Rate: 144Hz Resolution: Full HD Type: Monitor Connectivity: HDMI Screen Size (in inches): 24 inches