Acer Predator XB271HU Abmiprz 27-inch WQHD (2560×1440) NVIDIA G-SYNC Monitor 144Hz sold by Amazon. Dropped to $484.99 from $599.99. Prime shipping

Found this deal through pcpartpicker’s daily monitor price drop emails. This monitor can OC to 165hz, and I’ve read people OCing it past that without issues.
https://www.amazon.com/dp/B01N11QIYW/