These 4K Ultra HD Blu-ray discs will help you stress-test your home theater setup, from visual effects to acoustic performance.

The Alienware 27 4K QD-OLED (AW2725Q) sports a vibrant, glossy QD-OLED panel with a smooth 240Hz refresh rate and bright HDR.

You need to match your monitor choice with your PC specs to get the most for your money. A 4K monitor with a high refresh rate would likely be overkill if your rig has an older graphics card ...