CA40N Bluray Bd-rom Combo Slot-in Burner Sata Drive Ca10n Replace with Ca21n Ca30n Ca40n Ca50n Fru P/n:45k0432 Fits for Dell Studio 1457 1435 Fits for Dell Studio 1555 1558 1558 Fits for Dell Alienware M15x M17x Fits for laptop Dell Inspiron 1318 Vostro 1310 1510 Machine---lp315 Bluray BD-ROM Combo Slot-in DVD RW Burner SATA Drive CA10N Fits for DELL Studio 1457 1435 Fits for DELL STUDIO 1555 1558 1558 Fits for DELL Alienware m15x m17x Fits for Dell Inspiron 1318 Vostro 1310 1510