The Cooler Master Tempest GZ2711 is another fine addition to the growing 27-inch OLED gaming monitor market. It's equipped with LG Display's familiar WOLED panel, whose key characteristics are just as compelling here as they were when we first tested other monitors using the same panel: a 240 Hz refresh rate, superb pixel response times, low input lag, rich colors, sublime inky blacks, and high enough pixel density that fringing isn't too noticeable.

Cooler Master made the deal sweeter with a sturdy metal base and stand, a full scope of panel adjustability, as well as 96-watt USB-C Power Delivery support. That amount of power delivered via USB-C tops many of its competitors by a substantial 30 W margin, making this a better choice for connecting to a modern gaming laptop, or higher powered devices such as a MacBook Pro. The Tempest GZ2711 also has an integrated KVM switch, which for some reason isn't documented on the product's official page, its box, or anywhere else. It's definitely there, though, and it will automatically switch peripherals connected to two USB 3.2 Gen 1 Type-A ports between two devices as you jump between the corresponding video inputs. Nice!

The biggest downside of this monitor is a lack of an Auto Brightness Limiter toggle. The ABL is always on, and there's nothing you can do about it. The monitor will automatically increase and decrease the image luminance depending on the amount of bright content shown on screen, which some users will find annoying. This kind of behavior is desired when gaming and the oscillating luminance isn't noticeable in that scenario, but for productivity and any kind of desktop use, a constant brightness is very much desired. Some manufacturers also released their OLED monitors without the ABL toggle but added it through a firmware update at a later date. There's no hope of that happening with the Tempest GZ2711, because Cooler Master's monitor doesn't have an upgradeable firmware, which is a letdown.

With the $900 asking price, the Cooler Master Tempest GZ2711 is in a difficult position of going against several competitors that cost the same or even less, but in some aspects offer more. 27-inch 1440p OLED monitors are slowly but surely dropping below the $800 mark, and that's something that's going to have to happen with the Tempest GZ2711 as well, if it plans to be competitive.