Xbox will unveil the most powerful home videos games console ever made on Sunday (Monday AEST), as the tech giant seeks to challenge rival PlayStation.
The new Microsoft console, currently known as Project Scorpio, was first teased last year but Xbox is expected to discuss key details and first games for the new system.
Xbox says the console will offer "true" ultra-high-definition 4K gaming, as well as processing power more commonly seen in heavy duty gaming PCs.
The announcements will be part of a showcase from the company ahead of the opening of E3, one of the world's largest video game conventions, which begins this week in Los Angeles.
Xbox's existing generation console, the Xbox One, has been steadily outsold by the PlayStation 4 since the two systems launched in 2013.
PlayStation maker Sony launched its own super-powered console - the PlayStation 4 Pro - late last year.
However, specifications already announced by Xbox suggest the Scorpio will exceed the PS4 Pro's capabilities.
It includes graphical processing power at least four times that of the existing Xbox One.
