Budget Gaming PC used power supply comparison review Dell Optiplex 9010 7010 9020 Corsair RM850x PSU

I found a deal on this Corsair RM850x for $20. Should I sell it for more, or keep it for myself?
Also a comparison to Thermaltake 430w and Dell 750w PSU.
Links:
When I bought it :
My Dell 9010 Optiplex Build :
Thermaltake 430 (Amazon) :

[@RobertFixit]

UPDATE: Well apparently I was a bit shy on pricing. I posted it online for $60 and it sold within hours. I should probably have had a higher price point.
Farewell Corsair! You will live in your new gaming PC somewhere across America.

[@Adam-Mei]

Annoying when that happens. I had a case I modified slightly and then 5 other people wanted one too. It no longer had a warranty, but I wasn't going to void the warranty on a half dozen cases to sell them for a $40 profit to have 1 or 2 come back because of "damage" and lose all profit.

[@Adam-Mei]

I would mod the casing on the Dell PSU if you can do it safely. Safety glasses and gloves along with possibly an iron apron if available.

[@RobertFixit]

I just have to go back and see what other people were using when I was looking around or go back to my thermaltake with a quieter fan. Hopefully bequiet will call me someday 🤣