WD  Bare Drives 320GB WD Blue SATA III 5400 RPM 8 MB Cache Bulk/OEM Notebook Hard Drive WD3200LPVX IntelliSeek: Calculates optimum seek speeds to lower power consumption, noise and vibration. Data LifeGuard: Advanced algorithms monitor your drive continuously so it stays in optimum health. NoTouch Ramp Load Technology: Safely positions the recording head off the disk surface to protect your data. 2-year manufacturer limited warranty Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary. Ships in WD-certified box for safe transit during shipping