Yamaha mLAN-EX is a digital audio and MIDI networking system developed by Yamaha Corporation. It is used by professional musicians, sound engineers, and audio technicians to connect digital audio and MIDI devices. It works by connecting devices to a central hub, which then allows them to communicate with each other. The mLAN-EX system has a variety of features, including the ability to send and receive digital audio and MIDI data, the ability to synchronize multiple devices, and the ability to control multiple devices from a single controller. It also supports a variety of audio formats, including WAV, AIFF, and MP3.