4TB Silicon Power Armor A85 Silver USB3.0 Rugged Portable Hard Drive U.S Military drop test approved via MIL-STD 810G Method 516.6 Procedure IV Withstands drops from a height of 122cm on 26 contact points Ultra-sturdy: Stainless steel case can withstand pressure up to 500kg of force Meets IP68 for dust and water resistance: Endures 1.5 meter water immersion for up to 60 minutes Contains a USB cable carry clip