Enterprise SATA Hard Drives


Ideal for servers, video surveillance, and other demanding write-intensive applications, WD RE4 7200 RPM Enterprise SATA hard drives offer up to 2 TB capacity, 64 MB cache, 4th generation vibration tolerance


Dual processor


With double the processing power, WD RE4 boasts the highest performance of any drive in the WD RE family.


RAFF


Enhanced RAFF technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real time. The result is a significant performance improvement in high vibration environments over the previous generation of drives.



Dual Actuator Technology


A head positioning system with two actuators that improves positional accuracy over the data track(s). The primary actuator provides coarse
displacement using conventional electromagnetic actuator principles. The secondary actuator uses piezoelectric motion to fine tune the head positioning
to a higher degree of accuracy. (2 TB only)



StableTrac


The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking during read and write operations. (1 TB and larger drives only)



RAID-specific, time-limited error recovery (TLER)


Prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives