Acer CB272U smiiprx 27" WQHD Monitor Detailed Product Specifications Viewable Area 27" Display 16:9 Aspect Ratio Panel Type IPS Resolutions 2560 x 1440 (native and maximum) with AMD FreeSync Speakers 2 speakers, 2 watts per speaker Electrical Requirements Normal Operation: <22Watts Off (power-save): <1 Watts 100 - 240 VAC, 50/60 Hz Agency Certifications UL, cUL, FCC Class B, CE, TUV/GS, VCCI, RoHS, Energy Star, TCO Refresh Rate 75Hz Display Stand Pixel Pitch Included Ergonomic Tilt: -5° to 25° 0.