Power Supply (81499) for Sensor Track discontinued

Hello all: Lionel has discontinued this item and I am hoping someone on here knows of a substitute transformer that might work.

This is item

www.lionel.com/products/lcs-db9-cable-with-power-supply-6-81499/

It is the Serial plug and way the cord is split that makes it different. It might be something that you just have to make. Looking for suggestions.

Thanks.
Brian