Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective unit fried my comp, mediocre support

The wires on one of the four prong connectors on this weren't connected properly. When I connected my case fan the wires came completely loose, connected with the inside of the case and started to spark and burn. I don't have a new power supply to test with yet, but this power supply probably shorted out my brand new motherboard and/or my brand new hard drive.The best part is that I have to pay to ship back the defective unit.I don't expect them to pay for the hundreds of dollars in damages it probably has caused, but the least they can do is pay for the shipping to take their defective product back.I don't think I need to say I was very disapointed in the quality of this power supply.