The Dell UltraSharp U4919DW is the first ultra-wide screen QHD on the 49-inch market. Others with a 32:9 screen ratio have vertical analysis at 1080p. 
The result can be a broad one, but it offers a short user interface. But in the case of Dell UltraSharp U4919DW, there are more pixels and better viewing angle.
Picture of TheVerge
What is very different about the U4919DW compared to other 32:9 displays is a dual QHD display with a resolution of 5120×1440 pixels. In addition to this screen resolution, the screen has a 3800R curvature with support for 109 pixels per inch and 100% sRGB for much more accurate Colourthe. As with any other ultra-wide screen, it has HDMI/DisplayPort/USB-C support, but also KDM functionality (keyboard, video and mouse).
Using the U4919DW KDM, you can connect a machine via USB-C and a second via HDMI / DisplayPort with USB upstream. Of course, you can use keyboard shortcuts through its Display Manager application Dell to manage both systems with their peripherals.
Dell says the UltraSharp U4919DW will cost $1.599, a price which doesn't seem that expensive considering what it offers.
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