It developed the Google Cast SDK (software development kit) to enable developers to add related functionality to third-party apps that can be used to launch media from the client device to the Chromecast. Google created Google Cast screen-sharing technology to work on top of DIAL, adding a lot more functionality than DIAL could offer alone. Like its brother, the Chromecast with Google TV has an HDMI connector to plug into the TV, but the power cable uses a USB-C connection rather than micro USB. The remote control for each is color coordinated and offers voice control in addition to physical buttons. It comes in three colors: snow, sunrise and sky. It is 6.4 inches (162 millimeters) long, 2.4 inches (61 millimeters) wide and 0.5 inches (12.5 millimeters) thick. The Chromecast with Google TV has a similar form factor, although the device itself is ovular. It comes in two colors - chalk and charcoal. In addition to its HDMI connector, it has a micro USB port for power. It's 6.4 inches long (162 millimeters) from end to end with the cord included, but the device itself is 2 inches (51.8 millimeters) in diameter and half an inch (13.8 millimeters) thick.

Although the original Chromecast looked a lot like a bulbous flash drive, the third-generation model is disc-shaped with a cord permanently attached that you plug into your TV.

Cast google chrome app