Got it today. The charger has a problem. From outside it looks identical as the original and there is no visible damage however once I plug it into my laptop I can hear some background noise, also when I plug it into a socket sometimes sparks come out. Moreover the metal end of the cord which you actually plug into the laptop is getting very hot just in few minutes after I plug it into the socket. I'm now asking for a refund as I'm not willing to take a risk of this thing burning my house or damaging my computer...