https://www.theverge.com/2018/5/15/17352624/microsoft-surface-hub-2-features-launch-date-pricing

Microsoft is unveiling the next-generation of its giant conference room displays today: Surface Hub 2. While the original Surface Hub shipped in 2016 with 1080p 55-inch and 4K 84-inch options, the Surface Hub 2 will use a 50.5-inch display with a greater than 4K resolution and 3:2 aspect ratio with extremely thin bezels. That’s the same ratio as all other Surface products, and Microsoft has clearly picked this to compliment the fact its giant display now rotates to a portrait position.

The new portrait orientation allows the Surface Hub 2 to rotate into place with a clever mechanism that looks similar to Microsoft’s Surface Book muscle wire lock. Microsoft isn’t providing many specifications for the new Surface Hub 2, or even a release date or exact pricing, but the new device will be available in 2019. Today’s preview is more about informing businesses that typically order devices far in advance that this device is on the way.