PORJET: REPLACEMENT 12.7mm DS-8A8SH DVD&plusmn;RW SATA Burner Drive USE For THINKPAD T430T430IT530T530IT420T420IT520 W500W700R400R500 DO NOT USE FOR DELL & ANOTHER LAPTOP ONLY USE FOR THINKPAD: T430T430IT530T530IT420T420IT520 W500W700R400R500 Dimension(D*W*H): 129MM*128MM*12.7MM, Thickness: 12.7mm Please confirm size before purchasing.