Connectivity

The Corsair Xeneon FLEX 45WQHD240 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 30 W Power Delivery, so that's the amount of power it can deliver to a connected device, such as a smartphone or a laptop. It also offers a 5 Gbps USB data upstream bandwidth. HDMI 2.1 inputs offer a full 48 Gbps bandwidth.


Below the video inputs are three 5 Gbps USB 3.2 Gen 1 ports, two USB Type-A and one USB-C. Two more 5 Gbps USB Type-A ports are found on the front. You can use all these to connect peripherals, external drives, and other USB devices, and then share them between two computers, thanks to the integrated KVM switch. To get this to work, you need to connect one device via the USB Type-C DP Alt Mode port, and another one through the USB Type-C upstream port (for data), and either a HDMI or DisplayPort (for video). The implementation of the KVM switch is excellent, as it's fully automated. As soon as you select the desired video input, which is doable through the OSD's input selection quick menu, the connected USB devices switch to the appropriate source, without you having to do anything else. Located next to the front USB Type-A ports is a 3.5-millimeter headphone jack.

Power Consumption

The Corsair Xeneon FLEX 45WQHD240 gets its power from an external 240 W (20 V/12 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 FLEX 45WQHD240 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.