Does the LG 27U411A-B monitor support HDR?

Yes, the LG 27U411A-B monitor supports HDR10.

What is the refresh rate of the LG 27U411A-B monitor?

The LG 27U411A-B monitor has a refresh rate of 120Hz.

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LG 27U411A-B 27-inch Full HD (1920 x 1080) IPS Computer Monitor, 120Hz, HDR10, Reader Mode, Flicker Safe, HDMI, Slim Stand Base, Black

Vivid Color with Full HD Resolution - The LG 27" IPS monitor with Full HD (1920 x 1080) resolution delivers sharp, vibrant visuals from virtually any angle. Whether you're tackling tasks, browsing the web, or managing your inbox, this monitor helps you stay clear, focused, and productive.
Virtually Borderless. Visually Seamless. - The ultra-slim bezels and 3-side virtually borderless design creates a clean, modern look that keeps your focus where it belongs—on the screen. The sleek stand and base adds a floating feel, perfect for dual setups or a clutter-free workspace.
Experience Smooth Motion with 120Hz - With a fast 120Hz refresh rate, you’ll experience smoother frame transitions. Whether you're working or gaming, enjoy more fluid visuals with less screen stutter and motion blur.
1ms Motion Blur Reduction for Crisp Gameplay - 1ms Motion Blur Reduction(MBR) keeps fast-paced gameplay sharp by minimizing blur and ghosting. Whether you're tracking enemies or racing to the finish, every frame stays crisp—giving you the edge when it matters most.
Work, Create and Game in Bold Color - With HDR10 support and up to 99% sRGB color gamut coverage, this LG Monitor delivers rich, vivid color across a wide spectrum—ideal for immersive gaming, creative projects, and everyday productivity.
Customize Your Screen View with the Switch App - The Switch app transforms your screen into a multitasking hub for work, gaming, and streaming.