Additional power supply on HA Yellow POE

Is it possible when purchasing a HA Yellow POE to purchase an additional external power supply to power it?
Initially, I will connect with the classic power supply, then when I have a POE switch, I will do without the external power supply.
If it is possible what reference it is for the power supply?
Thanks for your feedback, I’m about to order.
Best regards

uy s

This is a generally user supported platform. You are trying to talk to the place you are ordering from, which is a 3rd party reseller.
We don’t have your answer here.