The Dell UltraSharp U4919DW is the first ultra-wide QHD display on the 49 inches that is on the market. Others with 32 screen ratio: 9 have a vertical resolution at 1080p. 
The result can be a broad but offers a brief environment work to the user. But in the case of the Dell UltraSharp U4919DW, there are more pixels and a better viewing angle.
Picture of TheVerge
What's 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 colors. As with any other ultra-wide screen, it has HDMI/DisplayPort/USB-C support, but also functionalKDM capability (keyboard, video and mouse).
Using the U4919DW's KDM, you can connect one machine via USB-C and a second via HDMI/DisplayPort with USB upstream. Of course you can use shortcuts of the keyboard through applicationς Display Manager of Dell to manage both systems with their peripherals.
Dell reports that UltraSharp U4919DW will cost 1.599 dollars, a price that does not seem to be so expensive if you think about what it offers.
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