Genuine Dell Hitachi HLDS GU40N, 7G1NJ Super Multi DVD Rewriter DVD&plusmn;RW DVD-RW DVD+RW SATA Slim Optical Drive Compatible Part Numbers: GU40N, 7G1NJ **Guaranteed Dell Genuine** Part Number: 7G1NJ Model: GU40N Compatible Model: Dell Latitude E6410 E6400 E6500 E6510 E4300 **Ship within 24 hours except for holidays and weekends**