GS41N Superdrive 8X Slot-in DVD&plusmn;RW Slim SATA Drive 9.5mm DVD Burner drive for Apple MacBook / Macbook Pro A1181 A1286 A1278 UJ8A8 Replace GS31N UJ868A, UJ898A, AD-5970H SATA SuperDrive DVDRW Burner For MacBook /MacBook Pro A1286 DVD SuperDrive Model Name: GS41N, Condition: Brand New Type: Internal, Interface: SATA Slot Load Dimensions: 128.0(W)mm x 9.5(H)mm x 129.0(D)mm Seek Times: DVD-ROM/CD-ROM 140msec, Buffer memory: 2GB