1 TB 2.5". USB 3.2 Gen 1 (3.1 Gen 1). Black, Red. The HD710 Pro takes external hard drive durability further. We test it to beyond IP68 dust and waterproof standards, plus make sure it passes military-grade shock proofing with triple-layered protective construction. With up to 4TB capacity, this master of storage survival is your ally in keeping content safe whether your flavor is diving, hiking, biking, or simply taking a quick stroll. Beyond IP68 to withstand the unexpected. Adata external storage expertise results in a drive with total dust-tight protection and a submarine-like ability to survive water. The HD710 Pro is tested for 60 minutes in 2 meters of water - that's more than IEC IPX8 requirements!. Prepare to dive?. Takes shocks like a true warrior with military-grade toughness. The HD710 Pro holds up against shocks, drops, and vibrations thanks to its extra-rugged triple-layered construction. We test it to US Army MIL-STD-810G 516.6, meaning it can easily take falls from 1.5 meters. Your data is safe, so feel free to go out there and take on more challenges. Guarded by durable triple-layered construction.