LG 27U411A-B Monitor: The ultimate screen for your arcade machine or bartop
If you’re building or upgrading your arcade machine, bartop or arcade cabinet, the monitor matters just as much as the rest of the hardware. The LG 27U411A-B is one of the best monitors you can install: 27-inch IPS panel, Full HD resolution, 120Hz, virtually borderless 4-side design and VESA support. Everything you need for your arcade to look and respond like a real arcade hall machine, right in your living room.
🕹️ 120Hz: smooth motion in every game
The 120Hz refresh rate makes a real difference when playing arcade classics, shooters, beat ’em ups or any action game. Every frame is rendered with total fluidity, no stuttering, no flickering. Combined with 1ms Motion Blur Reduction (MBR) technology, fast-moving objects stay sharp even in the most frantic scenes, just like on original arcade machines.
🖥️ 27″ Full HD IPS Panel: accurate colours from any angle
The IPS (In-Plane Switching) panel delivers precise and consistent colour reproduction regardless of the viewing angle. With 99% sRGB colour gamut coverage, 1500:1 contrast and 250 nits brightness, your retro or modern game graphics look exactly as they should. The 1920×1080 Full HD resolution is the ideal arcade standard: compatible with Raspberry Pi, PC, MiSTer FPGA and any console or game board.
⬛ 4-side borderless design: clean and professional installation
The virtually 4-side borderless design is a huge advantage in arcade builds. Without thick frames breaking the aesthetic, the monitor fits perfectly into the front of your bartop or arcade cabinet panel, delivering a clean and professional finish. The screen visually fills the entire available space, just like original arcade machines.
🔧 VESA compatible: direct mounting in your arcade cabinet
The LG 27U411A-B includes VESA mounting support, making installation in any arcade cabinet or bartop significantly easier. You can remove the original stand and mount the monitor directly onto the wooden panel using standard VESA screws. A simple, clean and secure solution.
🌈 HDR10: more vivid and deeper graphics
HDR10 support adds an extra dimension to compatible games, with brighter highlights, deeper shadows and a wider colour range. Perfect if you connect a Raspberry Pi 5, a PC or a modern console to your arcade. Indie games and current ports come to life on this panel.
⚡ Low latency with Dynamic Action Sync
In arcade, immediate control response is everything. LG’s Dynamic Action Sync technology minimises input lag so every joystick or button press translates into on-screen action without any perceptible delay. Authentic gameplay, as it should be.
🔌 Connectivity: HDMI 2.0 and VGA (D-Sub)
The monitor features an HDMI 2.0 input for connecting Raspberry Pi, MiSTer FPGA, PCs, mini PCs or any modern device, and a VGA (D-Sub) input for compatibility with older hardware or original arcade boards. It also includes a 3.5mm headphone output to manage audio in your setup.
📐 Technical specifications
| Model | LG 27U411A-B |
| Size | 27 inches |
| Resolution | 1920 x 1080 (Full HD / 1080p) |
| Panel type | IPS |
| Refresh rate | 120Hz |
| Response time | 5ms (GtG) / 1ms MBR |
| HDR | HDR10 |
| Colour coverage | sRGB 99% (typ.) |
| Brightness | 250 nits (typ.) |
| Contrast | 1500:1 (static) |
| Viewing angle | 178° horizontal / 178° vertical |
| Design | 4-side borderless |
| VESA support | Yes |
| Video inputs | HDMI 2.0, VGA (D-Sub) |
| Audio | 3.5mm headphone output |
| Displayed colours | 16.7 million |
| Gaming features | Dynamic Action Sync, Black Stabilizer, 1ms MBR |
| Comfort features | Flicker Safe, Reader Mode, Blue Light Filter |
| Tilt adjustment | -5° to +20° |
💡 Which OmniRetro cabinets is this monitor ideal for?
The LG 27U411A-B is specifically designed for our cabinets that support a 27-inch screen. It is the officially recommended screen for the following OmniRetro kits:
- King XL – Our large-format arcade cabinet finds in this monitor the perfect balance between size, fluidity and image quality for long gaming sessions.
- Virtual Pinball – The main screen of our virtual pinball cabinet requires a 27″ monitor with great response and accurate colours. The LG 27U411A-B meets all the requirements to represent the playfield with total realism.
Compatible with Raspberry Pi 3/4/5, MiSTer FPGA, PC, mini PC, Pandora and virtually any system you use as the brain of your arcade.












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