AMD FreeSync Technology. AMD FreeSync(TM) & Low Input Lag Mode. AMD FreeSync synchronizes the refresh rate of your graphics card and monitor to reduce image tear and stutter. And Low Input Lag Mode minimizes the delay between mouse, keyboard, or joystick input and onscreen response for a seamlessly smooth gaming experience.
I'm really enjoying this monitor. I use a laptop like a desktop, with external monitor + bluetooth keyboard and mouse. I had a nice 1080p TV as a monitor before, but I upgraded everything. I don't like the single switch, or the mount. I was able to use a desktop VESA mount, and that is much better. I recommend this monitor for everyday use, but I am not a gamer.
May be refurbished but certainly wasn't fixed properly
This monitor not only supports 144hz and is stuck at 60hz no matter what I did yo try and change that, but the tv consistently goes black for 5 seconds and turns back on and both hdmi cables I had tried are new and work with my other monitor. This montior was not fixed properly. All in all this monitor does not function as it should and is not worth the money I paid for it. If you want a good monitor, BUY IT BRAND NEW!!