ViewSonic 27-inch 165Hz QHD Gaming Monitor (VX27182KPCMHD) - Resolution: 2560 x 1440, Contrast Ratio: 4,000:1 (typ), Aspect Ratio: 16:9, Response Time: 1ms, Brightness: 250 cd/m² (typ), Refresh Rate: 165, Internal Speakers: 2Watts x2, Connectivity: 1 x 3.5mm Audio Out, 2 x HDMI 2.0, 1 x Display Port, Power in: External power adapter, PC Operating System: Windows 10 certified; macOS tested, VESA Compatible: 75 x 75 mm