ioSafe 216 4TB Network-Attached Storage Fireproof & Waterproof, Black (216-4TB1YR) Fireproof - Protects data from loss up to 1550F for 1/2 hour per ASTM E119 Waterproof - Protects data from flood. Fully submersed, fresh or salt water, 10 foot depth, 72 hours. Data Recovery Service(DRS) for any reason. Redundant Drives (RAID) - protect from single HDD failure with mirrored drives. Dual-core CPU with hardware encryption engine