HP High-Performance Secure EIO Hard Disk 80 Cache 3.5 Internal Bare or OEM Drive (J8019A#140) With the HP High-Performance Secure EIO Hard Disk with a Kensington-style lock, you can easily help secure valuable data at rest on your HP printer or MFP and still achieve optimal performance. Help protect data at rest on your internal HP hard disk with an EIO cryptographic solution that secures information without affecting device throughput. Hardware-based AES encryption provides added protection and assurance that information is safe.