Just as the name suggested,Liteon DG-16D4S - Unlocked Replacement PCB is a replacement for xbox 360 board.If you are suffering one of following issues,this item is specially for you:Several days ago,the team Xecuter have released a new Unlocked Replacement PCB for Xbox360 , named Liteon DG-16D4,which
can fit all DG-16D4S drive versions and allow you to reprogram your
firmware to the board and then to set it to write protect to secure
against any accidental firmware corruption / erasing.
You can get it here:http://www.digitopz.com/cheap-liteon-dg16d4s-unlocked-replacement-pcb-for-xbox360-p-1066.html