850w ATX Power Supply

I have a brand new ASRock Steel Legend SL-850G 850W 80 PLUS GOLD & Cybenetics PLATINUM Full Modular Power Supply. I used it once to power on some hardware on a test bench but then realized I bought the wrong one for my use. I bought it for $150 from Newegg but it is now past the window to return it. Cash accepted, Cashless payment accepted.