Acer Nitro XF273U - 27" Monitor FullHD 2560x1440 16:9 VA 240Hz 1ms 400Nit HDMI. With 400 Nit brightness and HDMI connectivity you'll enjoy vibrant visuals and easy setup. XF273U Xbmiiprx. 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.