UR-MK3 Series Audio Interface

MixKey (public beta 0.9 as of October 9th, 2025) is Steinberg’s free audio mixing software for streamers. It allows you to manage microphones, game audio, and application sounds with ease, and offers virtual channels, routing, and effects for streaming and recording.

UR series devices come with access codes for downloading the "Cubase AI" DAW software. You can download this software on a computer connected to the Internet.

The "Cubasis LE" DAW app for iOS is available on the App Store. By connecting an UR series device to your iPad or iPhone, you can unlock the feature set of "Cubasis LE". This installation guide explains the steps required to unlock the app.

Steinberg Plus is a true “plus” offer from Steinberg for owners of UR series audio interfaces, including a great selection of VST instruments and VST sound loop sets free of charge.