24x dvd writing speed m disc support 1000 years storage solution e green saves over 50 of power consumption back up data for your android devices asus webstorage unlimited webstorage for 6 months double the security with disc encryption ii through password control and hidden file name functionality asus drw 24d5mt is a power saving 24x dvd writer that provides you with the flexibility and efficiency for multimedia data storage and the most complete data backup solution with m disc