WD Caviar Blue 500Gb SATA 6Gb/s 3.5-inch Internal Desktop Hard Drive, 16MB Cache, 7200RPM - WD Caviar Blue hard drives are available with SATA 6 Gb/s interface built to deliver rock solid performance and ultra-cool and quiet operation. These drives are the perfect solution for family and business computing.

• HIGH PERFORMANCE
  Combining high speed cache and large capacity, the WD Caviar Blue internal hard drives provides solid performance to meet the most demanding environments and applications.
• ADVANCED FORMAT TECHNOLOGY (AFT)
  Adopted by WD and other drive manufacturers as one of multiple ways to continue growing hard drive capacities, the Advanced Format Technology (AFT) is a more efficient media format that enables increased areal densities.
• SATA 6GB/S INTERFACE
  The industry leading SATA Revision 3.0 compliant SATA ports provides up to 6Gb/s data transfer rates for optimal performance

Specifications:

• Form Factor: 
  - 3.5in
• Interface: 
  - SATA
• Capacity: 
  - 500GB 
  - 976,773,168 Sectors
• Cache: 
  - 16MB
• Data Transfer Rate: 
  - 126 MB/s sustained 
  - 6 Gb/s Buffer to host
• Rotational Speed: 
  - 7200RPM
• Power Usage: 
  - Read/Write: 6.0 W 
  - Idle: 5.6 W 
  - Standby: 0.9 W