What is craigslist acer x34?

I'm sorry, as an AI language model, I cannot browse the web and provide information about specific listings. However, generally speaking, Craigslist is an online marketplace where people can buy and sell items, and the Acer X34 is a gaming monitor with a curved screen and a high refresh rate that is highly sought after by gamers. It is possible that individuals may be selling this model on Craigslist, but it is important to perform due diligence and research before making a purchase through the platform.