The USB-C port supports external SSDs, and its single USB 3.0 port may power peripherals.
- The USB Type-C port allows 4K video display, data transfer and laptop/mobile device charging, all at the same time over a single cable.
- The monitor has one USB 3.0 port.
However, direct confirmation for SSD use is absent, and the single USB-A port might be insufficient for complex peripherals or multiple devices.
Who it suits
Works well if
- Content creation and accurate colour work, thanks to its 4K IPS display and 95% DCI-P3 coverage.
- General office tasks and comfortable viewing, with a 27-inch IPS panel reducing colour shift.
- Connecting laptops and devices via a single USB-C cable for video, data, and charging.
Think twice if
- Fast-paced gaming or high frame rate PC gaming, due to its 60Hz refresh rate.
- Users needing robust connectivity, as the USB hub has been reported to fail.
The numbers that matter
- 3840x2160 resolution for sharp detail
- 27-inch IPS display for wide viewing angles
- 60Hz refresh rate, suitable for office work but not high-end gaming
- 95% DCI-P3 colour coverage for accurate colour reproduction
- VESA DisplayHDR 400 support for enhanced contrast
What the evidence says
| Item | Value |
|---|---|
| Screen Size | 27 Inches |
| Resolution | 3840x2160 |
| Item Weight | 4.1 kg |
| Refresh Rate | 60Hz |
| DCI-P3 Colour Coverage | 95% (typ) |
| HDR Support | VESA DisplayHDR 400 |
| USB-C Functionality | 4K video display, data transfer, and laptop/mobile device charging |
| Number of HDMI Ports | 1 |
| Number of USB 3.0 Ports | 1 |
| Brightness | 400 cd/m² |
This product has no citable buyer reviews, limiting insights into real-world performance and reliability.
Where buyers hesitate
Can the USB-C port be used to connect an external SSD, and the USB-A ports for peripherals like USB mics?
The USB-C port allows data transfer, suggesting SSD compatibility, while the single USB 3.0 port might power microphones. The listing states the USB Type-C port supports data transfer, implying it could connect to an external SSD. The monitor features one USB 3.0 port, which may be sufficient for peripherals like USB microphones, though its capacity for multiple devices or complex peripherals is unconfirmed.
Is the LG UHD Monitor 27UP850K compatible with a Mac for video editing?
While not directly tested here, Mac compatibility is a common query, with USB-C offering likely seamless integration. The question of Mac compatibility for video editing is frequently asked. The monitor's USB-C port, which supports video display, data transfer, and charging, is designed for modern connectivity and should integrate well with Apple devices like M1 MacBooks.
How is the monitor's HDR 400 performance?
The HDR 400 performance is minimal, with highlights washing out darker areas due to the lack of local dimming. User reports indicate that the VESA DisplayHDR 400 support on this IPS panel offers minimal high dynamic range performance. Bright highlights can wash out darker areas because the monitor lacks local dimming zones.
What is the reliability of the monitor's USB hub connections?
The USB hub connections have been reported to fail after several months of use. There is a community report stating that the USB hub connections on this monitor failed after several months of use. This raises concerns about the long-term durability of its integrated connectivity features.
Why we judge it this way
The LG UHD Monitor 27UP850K is presented as a capable 27-inch 4K IPS display with notable colour accuracy (95% DCI-P3) and HDR support, making it suitable for content creation. Its key selling point for connectivity is the single USB-C cable solution, which the listing states supports 4K video, data transfer, and device charging simultaneously. This functionality suggests it should be able to handle an external SSD connected via USB-C, though direct user confirmation for this specific use case is not available. The monitor's 4K resolution of 3840x2160 pixels provides breathtaking clarity and fine detail, which is four times the resolution of Full HD, enhancing the visual experience for professional tasks.
Regarding the use of USB-A ports for peripherals like microphones, the monitor is listed with one USB 3.0 port. While this port should theoretically support peripherals, the presence of only one such port could be a limitation for users needing to connect multiple devices or more power-hungry accessories.
A significant concern arises from community reports indicating that the USB hub connections on this monitor have failed after several months of use. This recurring complaint, although not directly tied to the USB-C port's data transfer or the single USB-A port's specific use for microphones, casts a shadow over the overall reliability of the monitor's integrated connectivity. This is the strongest objection raised by the available evidence, highlighting a potential durability issue that prospective owners should consider.
While the specifications point to a strong display for visual tasks, such as its 27-inch 4K IPS display that delivers a comfortable viewing experience by reducing colour shift, the reported issues with USB hub failure and the minimal HDR performance are significant drawbacks that potential buyers must weigh against the monitor's other features.
The monitor's 60Hz refresh rate is suitable for office work or multimedia but not ideal for fast-paced competitive shooters or high frame rate PC gaming. This makes it a better fit for productivity and content consumption rather than high-performance gaming. The 4K screen makes text super sharp and colors look really vibrant, and it offers exceptional display quality with 4K resolution, HDR support, and 95% DCI-P3 gamut for accurate colors. Its VESA DisplayHDR 400 support aims for wide-range brightness and contrast, enabling dramatic visual immersion in games, films, and images, though its actual performance is noted as minimal by community reports.
The strongest objection we found
The USB hub connections have failed.
What this page does not answer
- IPS vs UHD monitor
- Why you probably don't need 4K for 27” sized monitors.
- Dell S2725QC wins on price
How this analysis was built
This analysis was conducted by reviewing the product listing specifications, including features and technical details, alongside user-reported complaints found in community forums. Marketplace rating data was also consulted.
We analysed publicly available data and community-reported statements.
Sources and verification
Everything on this page traces back to the listing published for this product on Amazon.co.uk. At the analysis date that listing showed 3.8 stars across 10 reviews. Analysis generated on 2026-11-02.
