Silicon Power 2TB Rugged Armor A65 IP67 Shockproof/Waterproof USB 3.0 2.5-inch Military Grade Portable External Hard Drive for PC, Mac, Xbox One and Xbox 360, Black Military-grade shockproof and IP67 dUstproof/waterproof protection Advanced 3-layer protection mechanism designed for extra rugged and shock resistant Rugged rubber case and anti-slip surface design made to avoid scratches and slippery problems. Compliant with the U.S. military drop-test standards MIL-STD 810G Method 516.7 Procedure IV (transit drop test), a freefall test (122cm) on 26 contact points(Product under normal Use meets the test standards. Do not deliberately drop or damage the product.). Cable storage design for simple cable carrying. dimensions: 143.4 x 86.7 x 20.7 mm SuperSpeed UsB 3.0 interface, backward compatible with UsB 2.0. SP HDD Lock Utility free software download for full disk encryption