LG UltraGear 27G521B-B 27" FHD IPS Gaming Monitor delivers the speed, clarity, and color fidelity competitive gamers demand. Built around a 27-inch Full HD IPS panel, this monitor pairs an ultra-fast 200Hz refresh rate with a lightning-quick 1ms (GtG at Faster) response to keep motion crisp and input latency low. Packed with gaming-focused features like NVIDIA G-SYNC® compatibility, AMD FreeSync™ Premium, HDR10, and tools such as Black Stabilizer and Crosshair, the UltraGear 27G521B-B balances performance and precision in a sleek, minimal design that stays out of your way while you stay locked on the action.
Benefits
- Hyper-smooth gameplay: A blazing 200Hz refresh rate reduces motion blur and delivers fluid frame transitions so fast-paced scenes remain clear and consistent.
- Competitive responsiveness: 1ms (GtG) response time and Dynamic Action Sync reduce motion blur and input lag, helping you react faster and aim more precisely when every millisecond counts.
- True-to-life visuals: IPS technology with HDR10 support and up to 99% sRGB color coverage produces vivid, accurate colors and wide viewing angles—ideal for both immersive single-player experiences and team-based competitive play.
- Tear-free experiences: Compatibility with NVIDIA G-SYNC® and AMD FreeSync™ Premium minimizes screen tearing and stutter, providing smoother gameplay across a wide range of GPUs and frame rates.
- Tactical visibility and aim assist: Black Stabilizer brightens dark areas for better target acquisition, while the Crosshair overlay gives a consistent aiming reference for FPS scenarios.
- Streamlined setup and ergonomic presence: Slim bezels, a minimal stand, and tilt adjustment create a modern, low-profile look that integrates cleanly into multi-monitor setups and gaming desks.
- Feature: Blazing 200Hz refresh rate and 1ms (GtG) response
- Feature: IPS panel with HDR10 and wide color coverage
- Feature: Adaptive sync technologies — NVIDIA G-SYNC® compatibility & AMD FreeSync™ Premium
- Feature: Gamer-centric enhancements — Dynamic Action Sync, Black Stabilizer, Crosshair
- Feature: Sleek design and versatile connectivity
Key features
Experience extremely fluid motion and minimal ghosting during high-speed gameplay. The dual combination of a 200Hz refresh rate and a 1ms gray-to-gray response preserves detail during fast camera pans and action sequences so you can spot movement sooner and follow targets with precision.
The IPS display reproduces colors consistently across wide viewing angles and supports HDR10 for improved contrast and dynamic range. With up to 99% sRGB coverage, games, movies, and creative content appear vivid and accurate, delivering richer reds, deeper blues, and lifelike skin tones.
Reduce tearing and stuttering across a broad range of frame rates. Whether you’re running an NVIDIA or AMD GPU, adaptive sync support keeps frame delivery smooth, maintaining immersion and giving you stable visuals during intense gameplay.
Dynamic Action Sync keeps input latency low for instantaneous feedback; Black Stabilizer increases visibility in dark scenes for better tactical awareness; Crosshair provides a center-screen aiming aid for improved accuracy in FPS titles. Together these tools sharpen your competitive edge.
The slim bezel and understated stand create a near-floating screen aesthetic that complements multi-monitor layouts and modern gaming setups. Tilt adjustment lets you dial in a comfortable viewing angle, while HDMI and DisplayPort inputs ensure broad compatibility with PCs and consoles. The monitor’s 16:9 aspect ratio and 1920 x 1080 resolution deliver a focused, performance-oriented canvas optimized for speed and clarity.
Summary
The LG UltraGear 27G521B-B is engineered for gamers who demand the fastest response and the truest colors without compromise. With a 27" Full HD IPS panel, 200Hz refresh rate, 1ms response, HDR10 color, and comprehensive adaptive sync support, it blends competitive advantage with visual fidelity. Add in tactical features like Black Stabilizer and Crosshair plus a slim, modern design, and you get a monitor built to keep you centered on the win—frame after frame.
| Manufacturer | LG |
|---|---|
| Manufacturer Part | 27G521B-B |
| UPC | 195174141021 |
| Resolution | 1920 x 1080 |
| Panel Type | IPS |
| Constrast Ratio | 1000:1 |
| Aspect Ratio | 16:9 |
| Response Rate | 1ms (GtG at Faster) |
| Brightness | 250 cd/m2 |
| Inputs | HDMI, DisplayPort |
| Sync Technology | FreeSync (AMD Adaptive Sync) |
| Manufacturer Warranty | Limited 3 Years |





