With the UltraFine 40U990A-W, LG is launching a display that not only impresses with its technical data, but also with its future-oriented connectivity concept. The 40-inch ultrawide monitor is aimed at users who place high demands on picture quality, connectivity and working comfort. Particularly noteworthy is the integration of Thunderbolt 5, which makes the monitor the interface for modern workstations – from creative workstations to sophisticated home offices.
- 40-inch IPS black panel with 5K resolution in 21:9 format
- 120 Hz frame rate, 99% DCI-P3 color space coverage, 2,000:1 contrast
- Two Thunderbolt 5 ports with up to 96 W power delivery and daisy-chaining
- USB-C hub, HDMI 2.1, DisplayPort 2.1, Ethernet and integrated speakers
Ultrawide with depth: picture quality at a high level
At the heart of the LG UltraFine 40U990A-W is an IPS black panel with a resolution of 5,120 x 2,160 pixels. This means the monitor delivers around 33% more pixels than a conventional 4K screen and is ideal for multitasking and precise color work. The 21:9 aspect ratio provides a wider field of view, which offers advantages for video editing as well as for developing applications or analyzing large amounts of data.
The IPS Black technology achieves a static contrast ratio of 2,000:1 – an above-average value for IPS panels, which enables deeper blacks and better shadow details. The brightness is a solid 450 nits, which is more than sufficient for use in well-lit office environments. In addition, the panel covers 99% of the DCI-P3 color space, which is particularly relevant for creative professions such as photography or color grading.
With a refresh rate of 120 Hz and support for AMD FreeSync Premium, the monitor is also suitable for casual gaming, although the response time of 5 ms is a little too high for competitive games.
Versatile connections and high future-proofing
A unique selling point of the LG UltraFine 40U990A-W is its dual Thunderbolt 5 configuration. The first connection is not only used for image transmission, but also for powering laptops with up to 96 watts – ideal for the latest MacBooks or high-end ultrabooks. The second Thunderbolt 5 port allows daisy-chaining or the connection of additional peripherals, such as a second monitor or an external GPU.
The device also offers a USB-C hub with four downstream ports, an integrated Gigabit Ethernet connection and classic video inputs via HDMI 2.1 and DisplayPort 2.1. This allows the monitor to be flexibly integrated into existing systems or used as a central dock – particularly practical for setup minimalists who want to bundle many functions into one device.
The monitor is slightly curved in the 2,500R radius, which creates a more immersive viewing experience on this screen size without affecting the image geometry too much. The setup is rounded off with integrated 2 x 10 watt stereo speakers and a height-adjustable, ergonomic stand.
Conclusion
The LG UltraFine 40U990A-W combines high picture quality with a wide range of connections and therefore cuts an excellent figure not only in professional environments, but also in ambitious home setups. Thunderbolt 5 and the high-quality IPS black panel in particular set standards for the coming monitor year. The market launch in Germany is planned for October 2025, Amazon is already listing the model at a price of 1,586 euros. A premium monitor with truly unique selling points – both technically and functionally. Further details can be found on the official website.
