The Large size data safe contains a safe-within the safe layer for additional data protection. The interior has enough space for 30 CD ROMs or DVDs. The removable shelf makes it possible to organize the interior to store memory cards, passports or portable hard drives separately from fire. Features - State-of-the-art digital touchpad - 1 billion+ digital combinations - Tested to Yale Global Standards - Code scramble input function for privacy - One time access code - Silent input option - 1 to 48 hours total lockdown mode to deny access - Resettable 4-12 digital user code - 9V for emergency battery capability - Low battery alarm signal - Time lock when wrong code is inserted - Made in Korea Certificates - Tested to withstand up to one hour intense fire for data - Internal temperature will not exceed 50 Degree Celsius or 85% humidity in 927 Degree Celsius furnace - Certified by SP (Swedish National Testing & Research Institute) and KS (Korea Standard)