27 Inch UltraGear™ G5 IPS FHD 200Hz 1ms NVIDIA G-Sync Compatible Gaming Monitor

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27G521B-B
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Side Angle
LG 27G521B-B UltraGear Gaming Monitor with curved screen displaying colorful abstract graphics and logo - Front View
New
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
New
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Side Angle
LG 27G521B-B UltraGear Gaming Monitor with curved screen displaying colorful abstract graphics and logo - Front View

27 Inch UltraGear™ G5 IPS FHD 200Hz 1ms NVIDIA G-Sync Compatible Gaming Monitor

27G521B-B
27G521B-B
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Side Angle
LG 27G521B-B UltraGear Gaming Monitor with curved screen displaying colorful abstract graphics and logo - Front View
New
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
New
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Front View
LG 27G521B-B UltraGear Gaming Monitor with colorful display and adjustable stand - Side Angle
LG 27G521B-B UltraGear Gaming Monitor with curved screen displaying colorful abstract graphics and logo - Front View

Key features

  • 200Hz refresh rate delivers fluid motion with reduced blur
  • 1ms Response Time (GtG) for sharper, cleaner fast-moving gameplay
  • Reduced screen stutter with NVIDIA® G-SYNC® compatibility AMD FreeSync™ Premium
  • Experience HDR10 and up to 99% sRGB on an IPS display for rich, vivid, immersive visuals
  • Dynamic Action Sync reduces input lag for real-time, responsive gameplay
  • Gain visibility in dark scenes with Black Stabilizer for tactical precision
  • Crosshair adds center-screen aim for better vision and accuracy in FPS games
  • Slim bezel and minimal stand create a sleek, floating design with tilt adjustment

Specifications

  • Picture Quality
  • Special Features
  • Input/Output
  • Stand
  • Power
  • Dimensions/Weights
  • Cabinet/Accessories
  • Warranty
  • See All
  • Picture Quality
    Color Depth (Number of Colors)
    16.7M
    Brightness (Typical, Minimum)
    (Typ.) 250 cd/m² (Min.) 200cd/m²
    Color Gamut (Typ.)
    sRGB 99% (CIE1931)
    Contrast Ratio
    1000:1
    Display Type
    IPS
    Pixel Pitch (mm)
    0.3108x0.3108
    Refresh Rate
    200Hz
    Resolution
    1920 x 1080
    Response Time (GTG)
    1ms (GtG at Faster)
    Screen Size
    27"
    Viewing Angle
    178º(R/L), 178º(U/D)
    Picture Quality
    Color Depth (Number of Colors)
    16.7M
    Brightness (Typical, Minimum)
    (Typ.) 250 cd/m² (Min.) 200cd/m²
    Color Gamut (Typ.)
    sRGB 99% (CIE1931)
    Contrast Ratio
    1000:1
    Display Type
    IPS
    Pixel Pitch (mm)
    0.3108x0.3108
    Refresh Rate
    200Hz
    Resolution
    1920 x 1080
    Response Time (GTG)
    1ms (GtG at Faster)
    Screen Size
    27"
    Viewing Angle
    178º(R/L), 178º(U/D)
    Special Features
    AMD FreeSync Premium
    Yes
    VRR
    Yes
    LG Switch
    Yes
    Auto Input Switch
    Yes
    Black Stabilizer
    Yes
    Color Weakness Mode
    Yes
    Crosshair
    Yes
    Dynamic Action Sync
    Yes
    Flicker Safe
    Yes
    FPS Counter
    Yes
    HDR Effect
    Yes
    HDR10
    Yes
    NVIDIA G-Sync™
    Yes
    Reader Mode
    Yes
    Smart Energy Saving
    Yes
    User Define Key
    Yes
    Input/Output
    DisplayPort
    Yes x 1
    HDMI
    Yes x 2
    DisplayPort Version 1.4
    Yes
    HDMI Version 2.0
    Yes
    Stand
    Display Position Adjustments
    Tilt
    Wall Mount Size (mm)
    100 x 100
    Power
    DC Off (Max)
    Less than 0.3W
    Input
    100~240V (50/60Hz)
    Power Save/Sleep Mode (Max)
    Less than 0.5W
    Type
    External Power(Adapter)
    Dimensions/Weights
    Shipping Dimensions (WxHxD)
    29.3" × 17.5" × 4.3"
    Shipping Weight
    12.6 lbs
    With Stand (WxHxD)
    24.1" × 18.2" × 8.7"
    With Stand Weight
    9.9 lbs
    Without Stand (WxHxD)
    24.1" × 14.2" × 1.5"
    Without Stand Weight
    7.5 lbs
    Cabinet/Accessories
    HDMI Cable
    Yes
    Warranty
    Limited Warranty
    1-Year Parts and Labor
    UPC
    195174141021
    Features

    Vivid Color, Fast Response, Total Control

    The 27" UltraGear™ Full HD IPS gaming monitor delivers vivid HDR10 color, ultra-smooth 200Hz speed, and 1ms (GtG) response. G-SYNC® compatibility & FreeSync™ Premium keep gameplay tear-free. The sleek, slim design keep you focused and in control.

    LG 27G521B-B UltraGear Monitor with vivid color display showing vibrant blue and purple light streaks - Front View

    Push the Pace at 200Hz

    A blazing 200Hz refresh rate keeps fast action sharp and controlled. Track enemies, react faster, and stay locked into every frame with reduced motion blur and smoother, more responsive gameplay.

    To Be Generated By AI

    1ms Response (GtG) for Crisp Gameplay

    1ms Response Time (GtG) 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.

    To Be Generated By AI

    NVIDIA® G-SYNC® Compatible & AMD FreeSync™ Premium

    NVIDIA® G-SYNC® Compatible1 and AMD FreeSync™ Premium deliver smooth, tear-free, low-latency gaming with high refresh rates—so every frame stays fluid and sharp.

    To Be Generated By AI

    Vivid Color That Puts You in the Action

    Step onto the battlefield with HDR10 visuals and up to 99% sRGB color gamut coverage. The IPS display delivers rich, vivid tones, so every explosion, shadow, and landscape appears exactly as the developers intended.

    To Be Generated By AI

    Smarter control. Seamless switching with LG Switch

    LG Switch2 lets you adjust image preferences and brightness directly from your desktop and apply settings instantly with a hotkey. Split your screen into up to 11 layouts, launch video calls with a click, and keep your gaming and everyday setup fast, organized, and distraction-free.

    Dynamic Action Sync

    Don’t miss a beat. Dynamic Action Sync helps you spot the action and strike fast by reducing input lag and boosting responsiveness.

    To Be Generated By AI

    Never In the Dark with Black Stabilizer 

    Never get caught off guard. Black Stabilizer enhances visibility in low-light scenes so you can spot threats before they see you.

    To Be Generated By AI

    The Accuracy Advantage with Crosshair

    Crosshair offers an accuracy advantage with center-display crosshairs that provide enhanced vision and precision for increased accuracy in first-person shooter games.

    LG 27G521B-B UltraGear Monitor Accuracy Advantage feature comparison showing OFF and ON states with crosshair overlay

    FPS Counter

    The FPS Counter will let you see how well everything is loading. Whether you're editing, playing games, or watching a movie, every frame matters, and with the FPS Counter, you'll have real-time data.

    To Be Generated By AI

    Streamlined Style Meets Immersive View

    See more screen and less distraction with the ultra-slim bezel and minimal stand. The sleek, floating-like design creates a clean, weightless look, while the seamless display feel pulls you deeper into the action. Fine tune your setup with screen tilt adjustment.

    LG 27G521B-B UltraGear Monitor with streamlined stand design and adjustable height and tilt features
    For owners

    Warranty Information

    1NVIDIA® G-SYNC® Compatible supports variable refresh rate on GeForce GTX 10 Series and higher GPUs on Display Port, and GeForce RTX 30 Series and higher GPUs on HDMI 2.1.

    2To download the latest version of the LG Switch app, visit LG.com


    Images may be simulated and dramatized for illustrative purposes. Actual features, functionality, and other product specifications may differ and are subject to change without notice. Prices, promotions, and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

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