Extreme 24X DVD writing speed with M-Disc support 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 Only available on retail box version Available on retail box and bulk with software version GREEN FOCUS The Most Energy Saving Drive E-Green auto-closes drive application when not in use, saving over 50% power consumption for users. NERO BACKITUP FOR ANDROID Full Backup For Your Android Devices Free included app makes it easy to back up all of your important data online or to a SD card or PC. SUPERIOR BURNING SOLUTION Only available on retail box version M-DISC SUPPORT 1000-years Storage Solution Save your priceless memories or data for up to 1, 000 years. DISC ENCRYTION II Double Security On-the-Go Password control access and hidden-file folder function. DISC ENCRYPTION II