Hello ! My girlfriend own a Macbook Air mid 2012 13" and two months ago my magsafe brick 60W (it was new) has died. When i plugged it in it exploded and died . So I bought a replica not an original magsafe from ebay. Yesterday same problem, plugged in , exploded, smelled like burned and died. It is my macbook air's fault or these things are made like crap (either original or replica) ? Thanks !