I'm not too sure about it,sorry for being ignorant.
However have a look at the image below,you may get your answer...
*img27.imageshack.us/img27/2818/31052012329.jpg
Uploaded with ImageShack.us
Also have a look at the following thread post#20, that's what I'm talking about-
*www.thinkdigit.com/forum/power-sup...ply-blacklist-thread-newbies.html#post1529018
I'm not saying that its a great PSU,I'll still advise you to get something from Corsair or likes...I'm myself a bit skeptical about this PSU;reason being it weighs 1/4th of my earlier PSU(250W which came with my hp pavilion).However the shopkeeper said,now a days transistors are used in place of transformers,hence the light weight.Dont know how much truth is in it.