This monitor exists for one reason: to give competitive gamers the absolute fastest response possible. The screen refreshes 540 times per second, which is overkill for most people but makes a difference in twitch-reflex games like Counter-Strike or Valorant where milliseconds matter. Pixels change faster than your eye can track, so there's zero blur trail behind moving targets.
It's a 24-inch 1080p screen, which sounds small and low-res compared to popular monitors, but that's intentional — smaller means less eye travel in fast games, and 1080p is easier for your PC to push at insane frame rates. The TN panel means colors look flat and washed-out compared to modern IPS screens, and viewing angles are bad, but competitive players accept that trade for speed.
The HDR label is meaningless here — it's not bright enough or detailed enough to make HDR content pop. Treat this as a regular display that happens to be absurdly fast.