HI there. I think this is what you are looking for
https://www.cui.com/product/external-ac-dc-power-supplies/ac-dc-accessories/smi-eu-2
I have the same problem. I live in the UK and I was delivered a PS with EU plug. I found the component but with the shipping costs it is cheaper to buy a new power supply...
Maybe the shipping costs from the US are more reasonable.
Lukasz