There are some rumors that Microsoft has notified its upstream supply chain to start shipping components for the upcoming Surface Pro 4 in September.

The same report also claims that Microsoft Surface Pro 3 shipment levels reached about 300,000 units per month following its launch. With the upcoming Surface Pro 4, Microsoft is allegedly estimating that monthly shipments could reach up to 500,000 - 600,000 units per month.

Specs of tablet are unknown, however, the report claims that Microsoft will use newest Intel processors (i3, i5 or i7), just like in Surface Pro 3, but faster and consuming less energy. Surface 4 is expected to have Windows 10 on board.

Microsoft wants to create serious laptop-class expirience in a thin, portable form. Can the company fulfill its goals? We will see very soon.