Microsoft may launch a device that would compete with Google's Google Chromecast, according to the company's latest FCC filing. The filing details a device codenamed HD-10, which features WiFi, HDMI support and a USB connection. In a seperate document found on the WiFi Alliance website, the HD-10 is described as a "Miracast Dongle." Miracast is Microsoft's screen-sharing technology available on Windows 8.1, Windows RT and, most recently, Windows Phone 8.1, though it's also built into Android 4.2 (and later) and BlackBerry 10.2.1.

The dongle will likely be able to mirror phone, tablet and laptop screens on a TV then.