Acer UT2 21.5" Monitor Full HD LCD Display 60Hz 1920x1080 Excellent Condition. HDMI connectivity allows for easy hook-up to your computer or gaming console. 60 Hz Refresh Rate. From service-oriented technologies to the Internet of Things to gaming and virtual reality, Acer’s 7,000+ employees are dedicated to the research, design, marketing, sale, and support of products and solutions that break barriers between people and technology.