# Multifunction Control Display Unit (MCDU)

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![](https://cdn.document360.io/417c2d4d-fdb8-4d4d-b11d-011fe445d776/Images/Documentation/image-1670245352916.png)

Allows radio tuning, PFD radio tuning display setup, manual engine rating selection, engine takeoff data set, <mark style="color:red;">avionics display setup and test</mark>, performance initialization, flight planning, <mark style="color:red;">access to electronics CBs</mark>, among others.