4 Tbyte HHD built for 24 x 7 x 365 operation

The Se 4 Tbyte 3.5-inch hard disk drive (WD4000F9YZ) is built on an enterprise-grade platform for reliable 24 x 7 x 365 datacenter operation. The drive features Enhanced Rotary Acceleration Feed Forward technology that includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real-time, dual processors for maximum performance, dual actuator technology that improves head positional accuracy over data tracks, and a motor shaft that is secured at both ends to reduce vibration.

The 7200 RPM drive uses a SATA 6 Gbit/s interface and has a multi-axis shock sensor that detects the subtlest shock events and compensates to protect the data. The drive is rated for 300,000 load/unload cycles, with non-recoverable read error rate of 1 in 10¹⁴ , and an MTBF of 800,000 hours. The drives MSRP is $310 and It is also available in 2 and 3 Tbyte versions.