The Deskstar 7K4000 offers the industry's highest hard drive capacity at an enormous four terabytes of storage with 7200 RPM performance in a standard 3.5-inch form factor. This drive uses Advanced Format, which increases the sector size on HDDs from 512 bytes to 4096 (4K) bytes, thereby increasing capacities and improving error correcting capabilities.
Thermal Fly-height Control (TFC)
SMART Command Transport (SCT)
LDPC and CRC protection
Halogen Free Design