- Dual actuator technology
- Dual processor
- StableTrac
- IntelliSeek
- Multi-axis shock sensor
- RAID-specific, time-limited error recovery (TLER)
- Third generation dynamic fly height
- NoTouch ramp load technology
- Active power save
WD RE4 enterprise SATA hard drives combine 64 MB cache with a SATA 3 GB/s transfer rate and dual stage actuation for lightning-fast performance in demanding server and storage applications. Technologically advanced acoustics minimize noise. Cool drive operation and enhanced reliability features help protect the drive and the data stored on it.