Is this a good PSU ?

The answer is I don't know. On the paper, it looks fine, but I recommend you get more info and google it to see you can find the review or not, but I think you may not find it. If you can't find any info then you are better to get other one. I recommend to buy one that has the good review by the professional, but not from the user.

For example, like the Cooler Master eXtreme Power 500w or Rosewill RP500-2, when you read the review ( the old one) you can see they can't pass the test by the professional. http://hardocp.com/article/2009/02/16/entry_level_power_supply_roundup/14#.VBmwKxYYS8A