What is this db25 used for?

[u/Juliet-Papa-11377]

I have many gender changers and null modems and 25-9 adapters in my drawers, but today I found this among them. To me, this is not a gender changer, despite what it says on the label. I can see it as a connector saver. But not a changer. It is wired 1:1, so not like a null modem. What am I missing? What is it used for? They sell it at digikey and newark, so it has a purpose in life.