Liteon ihas124 14 24x sata internal dvdrw black sata interface half height internal dvdr dvdrw dvd r dvd rw dvdr9 dvd r9 dvd ram dvd rom cd r cd rw cd rom combination drive support double layer dvd r9 recording function fast access time and high data transfer rate could be vertical mounted seamless link smart monitoring adapting recording technology for burning support fixed packet variable packet tao sao dao random access write incremental