This module adds the convenience of plugging 1/4 inch (6.5mm) cables straight into the AE Modular without having to use any adapter cables. It is not a freestanding design, it needs to MIXCONSOLE to work, and has to be mounted adjacent to that module where it connects via a short cable at the back.

https://wiki.aemodular.com/pmwiki.php/AeManual/MIXCONJACKOUT