Western Digital Caviar Blue 640 GB 7200 RPM SATA 3 Gb/s 16 MB 3,5" WD6400AAKS
Western Digital Caviar Blue WD6400AAKS-65Z7B0 640GB 7200RPM 3.5" SATA Desktop Hard Drive. These hard drives are at 100% health and working order. Our hard drives are formatted to NTFS for Windows OS.