LG 4K UHD 27UD88-W 27" LED-Lit Monitor with USB Type-C 4K UHD (3840 x 2160) IPS Monitor. Response Time: 5ms GTG. Refresh Rate: 60Hz sRGB over 99%. On-Screen Control with Screen Split 2.0 Color Calibration Pro USB 3.0 Quick ChargeUSB Type-C. Brightness (cd/m2) : 350 cd/m2. Contrast Ratio : 5M:1 OS Compatibility-Windows 8 Mounting type: VESA Compatible. Pixel pitch 0.1554mm x 0.1554mm