You can buy them from lots of places for 40~55 bucks.
Cannot find any reviews on them, or the 12 volt rail amp ratings. I'd say you are going to get what you pay for here, a cheap PSU.
Anyone on this forum will tell it you this is one thing you do not want to cheap out on.
If this is for your nephew's office PC that he checks email and runs Microsoft office, maybe okay. If for your own rig and you lean towards more performance, run from this thing.