iStorage diskAshur2 SSD 4TB Black Secure Portable Solid State Drive Password Protected Dust and Waterproof Hardware Encryption

"Real-time 256-bit encryption with AES-XTS (military-level) of the entire drive" Common Criteria EAL4+ compatible safe microprocessor FIPS PUB 197-validated encryption algorithm "PIN authenticated: Supports independent user and administrator PINs (7-15 digits)" No software required, 100% hardware encryption