I have brand new in box, still shrink wrapped, corsair TX750W powersupply. It was bought a year ago, but it started giving me problems so I shipped it to corsair, and they shipped back a brand new unit. I needed a ps in the mean time so i bought another one.
I can provide a photocopy of the receipt if needed, but corsair does not require it because they track the ps by their serial no. These power supplies come with 5 year warranty.
$100 FIRM
604-773-6400