Western Digital 640 GB Caviar Black SATA 3 Gb/s 7200 RPM 32 MB Cache Bulk/OEM Desktop Hard Drive - WD6401AALS[Product Information]- Ships in Certified Frustration-Free Packaging
- WD Caviar Black high performance 3.5-inch SATA hard drives co MBine 7200 RPM spin speed， 32 MB or 64 MB cache
- High performance electronics architecture features dual processors and bigger， faster caches for maximum read and write speeds.
- StableTrac -- The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking
- 640 GB capacity holds up to 128，000 digital photos， 160，000 MP3 files， and up to 77 hours of HD video; 5 year limited warranty
- WD Caviar Black high performance 3.5-inch SATA hard drives co MBine 7200 RPM spin speed， 32 MB or 64 MB cache
- High performance electronics architecture features dual processors and bigger
- StableTrac -- The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters
