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Definition: Wireless Display Adapter

A Miracast-based device from Microsoft that plugs into a TV, projector or monitor via HDMI and USB. Starting with Windows 8, the Wireless Display Adapter (WDA) lets a Miracast-enabled Windows PC, tablet or phone mirror its screen on the connected screen via Wi-Fi. Starting with the Anniversary Edition of Windows 10, Microsoft switched support from the WiDi protocol to Miracast, thus requiring a Wireless Display Adapter. See Miracast and WiDi.

Microsoft's Miracast Adapter
Plugging into the TV's HDMI port for signal and USB for power, the Microsoft Wireless Display Adapter enables Windows devices to send their screen content to the TV. (Image courtesy of Microsoft Corporation.)