Easily install and maintain—the internal hard disk drops in, and the EIO disk preserves the slot for further devices. Help protect data at rest on your internal HP hard disk with an internal or EIO cryptographic solution validated to the FIPS 140-2 standard. Hardware-based AES encryption provides added protection and assurance that information is safe. Hardware-based AES encryption provides added protection and assurance that information is safe. Make sure your investment is protected. The HP High-Performance secure EIO Hard Disk includes an adapter for a physical security mechanism to further prevent theft of your hard disk and attempted access to your information assets. Secure your assets and your investment.