Connectivity

The Corsair Xeneon 27QHD240 OLED is equipped with a pair of rear-facing HDMI 2.1 inputs, a DisplayPort 1.4 input, and a USB-C DP Alt Mode input. The latter supports 65 W Power Delivery, so that's the amount of power it can deliver to a connected device, such as a laptop. HDMI 2.1 inputs are limited to 24 Gbps instead of offering a full 48 Gbps, so your source must use compression to deliver the signal successfully.


On the left side of the stand (when looking at the monitor from the front) you'll find four USB Type-A ports and another USB Type-C port. This is an upstream port, which you can use to utilize the integrated KVM switch. The KVM switch lets you take control of two different devices with a single set of peripherals connected to the monitor. To make this work, you need to connect one device via the right USB Type-C DP Alt Mode port, and another one via the left USB Type-C port (for USB connectivity) and either a HDMI or DisplayPort (for video).

All USB ports on the Corsair Xeneon 27QHD240 OLED are USB 3.2 Gen 1 and offer a bandwidth of 5 Gbps. The aforementioned secondary upstream USB-C port comes with 15 W Power Delivery support, so it can be used to charge smartphones and other smaller devices.


Located beneath four USB Type-A ports is a 3.5-millimeter audio output.

Power Consumption

The Corsair Xeneon 27QHD240 OLED gets its power from an external 180 W (20 V/9 A) power brick. I've used the Meross MSS315 Matter Smart Wi-Fi Plug and the accompanying mobile app to determine the monitor's power consumption at various brightness levels, as well as in Power Saving mode, which it enters as soon as the PC goes to sleep. My power consumption measurements are summed up in the chart below. They were made after resetting the monitor to factory defaults.



The measured power consumption of the Corsair Xeneon 27QHD240 OLED is a complicated matter. At default settings, which I used when measuring it, the Brightness Stabilizer feature is turned off, so the picture brightness automatically adjusts to the content currently being displayed on the screen. With that, the power consumption oscillates wildly. For all my measurements the screen was showing a default Windows 11 wallpaper, but if I reduced the amount of bright content being displayed, the brightness would increase, as would the power consumption, unless the new content was partially black. When that's the case, the OLED panel leaves such pixels off and ends up consuming less power overall.