ADATA HD720 1TB USB 3.0 Waterproof/Dustproof/Shock-Resistant External Hard Drive, Black (AHD720-1TU3-CBK) Capacity: 1TB Waterproof (IPX8 standard: Submerged to 2 meters for 120 minutes) Dustproof (IP6X standard: Totally protected against dust) Military-grade Shockproof (1.8m drop test than the standard of MIL-STD-810G 516.6) High-end silicone case with carbon fiber-like pattern Compatible with USB 3.0 and USB 2.0