Microsoft already sells Surface devices in two sizes — 10 and 12 inches. Later this year, the Surface is going big. Really, really big.
Targeted primarily at business users, Microsoft will offer the Surface Hub in two sizes: 55 inches and 84 inches. In many ways, they really are just scaled-up versions of the Surface Pro. They have touchscreens and support pen input just like their siblings, but while the Surface Pro is built to let workers and teams get things done when they’re off on their own, the Surface Hub is all about letting them be more productive when they work together.
Source
A Guy
