Ultra Wide!

 My older computer monitor was having trouble synching, so time for a replacement.

https://www.lg.com/uk/monitors/lg-35wn73a-b

The hardware is fine. Like other LG products however it has no manual! Let's run through this using the product page linked above.

The video refers to speakers - this model has none. No problem for me as the computer has an external sound system.
The USB cable supplied has a mini connection both ends, so it won't plug in to USB HUBs or a PC.

The OnScreen Control app is not available via the LG website, I had to Search for a link to download it.
The assembly instructions are of the IKEA kind - a diagram with no text.

LG controls differ widely between models - they seem to be designed from scratch every time! In this case there was a hidden button on the bottom that accessed an onscreen menu.

 My color test screen is an Excel spreadsheet (!!) that has primary colors, on defaults they are a match for the smaller LG monitor next to it.

My Nvidia 1060 copes. It runs at 45C idle and at 70C for reasonable game settings.

Ultrawide is 21:9 as opposed to 16:9 widescreen. Most programs react intelligently to this, in Second Life for example peripheral vision increases.