The at CES announced Asus MG279Q monitor with 27" screen at WQHD 2560x1440 all of the sudden was added to the AMD list of FreeSync supporting monitors. AMD relays that message through a tweet.

With the tweet AMD welcomes ASUS to the FreeSync supporting monitor line-up,  the monitor uses a Displayport 1.2a connector with support for Adaptive sync. But at the announcement time, nobody really had mentioned that. Also the monitor was announced initially as a 120hz screen, this has become a 144Hz model. As far as the dynamic range goes, we heard it starts at 40hz to 144hz.

Spec wise there is little to complain, a 2560 x 1440 resolution with 5ms G2G response time, 1000:1 contrast ratio, 350 cd/m2 brightness and 178/178 viewing angles.

Now the bomb-shell, it is a 144Hz IPS panel, it is using the same AUO AHVA panel used in the Acer XB270HU.  The screen has a thin bezel design, and comes with DisplayPort, Mini DisplayPort, 2x HDMI and 1x MHL connections  There is also a 2 port USB 3.0 hub embedded. 

ASUS initially stated at CES that this model will ship at a retail price of $599 USD. 

Asus MG279Q 144Hz IPS monitor seems to have FreeSync support