There sure aren't a whole lot of options on the market for WQHD (2560 x 1440) 144 Hz monitors, and even less options when you?re looking for an IPS display panel. Heck, you don't have a lot of options for WQHD 144 Hz TN panels, either, especially when looking for 27-inches or larger. Today we?re going to take a look at the Acer Predator XB1 (XB271HU), which is a 27-inch WQHD panel capable of a 144 Hz refresh rate, or 165 Hz when overclocked, and 4ms gray-to-gray pixel response times, featuring NVIDIA G-SYNC technology. Some other features include 100% sRGB color gamut, a brightness of 350 nits, and built-in 2 watt stereo speakers. This monitor has been available since November 2015, but has been well received by gamers.