This Rock-ola cable assembly came from a Rhapsody II 418S that I parted out in July of 2023. 
The female end connects to the Write-In Unit Assembly in models that use this type of connector (they used two types that I have seen). 
The male end goes to the power supply. 

Each connector has 12 contacts and the cable measures about 58 to 60 inches in length.
(147 cm).