43 minutes ago, Eong said:
Why the doubt?
I can check the serial number against when he registered it and confirm it.
Because it costs almost as much to repair a PSU (outside of China) than it does to build a new one (in China).
Even if it's just a fan swap, you're obligated to safety certification bodies to do at least Hi-Pot testing. Typically a "refurbished" PSU is just a return that's been tested and deemed resell-able.
9 minutes ago, Eong said:
It's not the same.
If it's not labeled as a refurbished unit, it's probably a brand new PSU.