8X DVD write speed, ASUS ZenDrive U7M provides a complete, easy-to-use backup solution. ASUS ZenDrive U7M has an ultra-slim, 13mm form factor, making it the perfect companion to thin and light laptops. M-disc is designed to protect your memories from degradation and data loss for 1, 000 years or more. Nero backup full back up solution for Android devices.Operating temperature : 5 ℃ to 40 ℃ Windows and Mac compatible