The delicate parts inside a portable hard drive require strong protection. Compliant with MIL STD 810G 516.6 Procedure IV (transit drop test), A65 consists of two layers of rubber and a middle frame to create a unibody design which makes the casing very resistant and durable. The internal suspension system provides a vibration damping function to reinforce overall stability the outer rubber cover not only creates a shockproof shell but makes the surface anti slip and anti scratch. Advanced 3 layer protection, the rugged Armor A65 is an expert in shock resistance. Constructed with an arc shaped and integrated frame, the Armor A65 is the industry's first IP67 rated portable hard drive which can completely protect against dust penetration and up to 30 minutes of water immersion at depths of up to 1 meter. We take every detail into consideration because water and dust are the most common threats to portable hard drives in everyday life.