Dyconn USB 3.0 256 Bit AES Encrypted Flash Drive with Backlite Keypad 64GB or 128GB Full Zinc Alloy Weather Resistant (EPD64) 256-bit AES Data Encryption w/ Zinc Alloy Housing Auto Re-lock/Reset Security Function. Backlit Keypad w/Lithium Battery Shockproof, dust-proof & Short-Term Waterproof up to 33ft (10M) SuperSpeed USB 3.0 Transfer Speed (Up to 5Gbps) Compatible with PC/Mac/Linux, USB Devices