Miracast is used by Microsoft Windows devices and some Android manufacturers, notably Samsung and LG. Miracast is developed by the Wi-Fi Alliance and is based on the Wi-Fi Direct standard. Miracast uses Wi-Fi beaconing to indicate the presence of a Miracast receiver. To initiate the connection, a Wi-Fi SSID starting with DIRECT- is set up so that Miracast senders can discover.

There are two different ways AirServer supports Miracast:

  1. Standard or Ad-hoc Miracast: In this case the sender connects to the Direct Wi-Fi SSID and mirrors over that connection. The sender can also be on other Wi-Fi networks at the same time.

  2. Miracast over Infrastructure: This is a vendor extension from Microsoft that is available for Windows 10 versions starting with 1703. It uses the Wi-Fi Direct beaconing for discovery but connects through the building infrastructure network.

Whenever possible, we recommend using Miracast over Infrastructure as it has more stability and shorter connection times. If Miracast over Infrastructure is not achieved, the sender will fall back to using Ad-hoc Miracast.

Miracast can support resolutions up to 4K 60 fps with capable sending devices and good network conditions. Average bitrates will depend on the content and resolution, but can be up to 35 Mbps for 4K video streams.

Latency for Miracast is around 180 ms with good network conditions. AirServer also implements hardware cursor, on supported platforms, where the mouse cursor shape and location are sent separately with very low latency.