Question about zebronics smps

[zyberboy]

I bought a new zebronics 500w platinum series smps,it has one pin missing,wen i asked abt this the dealer said its normal for this series. Is it true ? , hav anyone bought zeb smps recently, and also what the purpode of leaving one pin?

here is the pic , third one frm top
http://img503.imageshack.us/img503/514/smpstk2.th.jpg (http://img503.imageshack.us/my.php?image=smpstk2.jpg)

[htnakirs]

If the system works, don't worry about missing pin. (Duh?)