Connectivity

Not much to see on the video input front. The MSI Oculux NXG251R is equipped with a HDMI 1.4 and a DisplayPort 1.2 port. If you plan to run it at 240 Hz, which is likely why you bought it in the first place, DisplayPort 1.2 is the only eligible connectivity option. There are two more connectors here: one for the external power brick and another for USB 3.1 Gen1 upstream.


On the left side of the monitor are three USB 3.1 Gen1 ports. They're positioned close to the edge of the screen and, as such, easily accessible. That comes with a drawback, though, as anything you plug into them is bound to stick out from the monitor's left flank, potentially drawing your attention away from the screen. These ports are best for USB sticks, SD card readers, and other "temporary" devices. Hardcore gamers aren't likely to connect their peripherals to the monitor anyway.

Just in case you're interested in the time it takes the monitor to switch from one input to the other, as well as to display a picture after you press the power button on your PC case, here are the measurements of those parameters.

Power Consumption

The monitor is powered by a fairly compact external power brick. I used a power meter to determine the power consumption of the monitor at various brightness levels, as well as in sleep mode. Sleep mode activates a couple of minutes after the PC goes to sleep assuming you set the "DP Deep Sleep" (or "HDMI Deep Sleep") option in the OSD to "On". If you keep it off, the monitor won't enter sleep mode, consuming 13 W even when your PC is turned off. My power consumption measurements are summed up in the chart below. They were made after resetting the monitor to its factory defaults and adjusting the brightness as stated in the table.



The numbers are in line with what we would expect from a 24" gaming-grade monitor. Interesting is that the actual brightness is not even close to being linear in relation to the percentile brightness values in the OSD. Also, when set to the lowest available brightness in the OSD (0%), actual screen brightness is still above 100 nits, which is quite unusual. This would only pose a problem if you want to make the backlight exceptionally dim (for example, your eyes get tired easily during nighttime). Otherwise, in the context of a gaming monitor, it's a non-issue.