The connection used to be "Bar" system (rectangular), new "Twist" system (hexagonal).
The mincer has twist. Unfortunately, this is not stated in the description on the website.
With the Kenwood adapter KAT001ME for low-speed connection, it also works with older machines: https://shop.kenwoodclub.ch/de...
https://shop.kenwoodclub.ch/de...

I can't tell you, we had to buy an additional adapter for our Cooking Chef Major machine. However, this should be in the machine's documentation.