It is 100% Original Xbox 360 Slim DVD Drive Lite-On DG-16D4S PCB Main Board 9504 Unlocked Repair Part Replacement!!

Refurbished, in perfect condition, taken from 16D4S Drive, tested working before shippping.

Key Features

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• - Fits all Liteon DG-16D4S Drives 
  - Fully compatible with 9504, 0225 and 0401 fw revisions 
  - Write Protect enable / disable feature 
  - Simply swap out the old board with your new board and you are good to go ! 
  - Easily programmable using the X360USB PRO or compatible SATA. 
   
  Note: All replacement boards are shipped blank. You must program your consoles correct firmware version and drive key.