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WD Caviar Blue SATA III (640GB, 16MB Cache)
The Caviar Blue SATA III (640GB, 16MB Cache) desktop hard drive features ShockGuard, which protects against bumps and vibrations, and NoTouch ramp load technology, which ensures the recording head never touches the disk media.
Product Specification
| Model No. | WD6400AAKS |
| Interface & Data Transfer Rate | SATA 3Gbps |
| Capacity | 640GB |
| Average Read Seek | 8.9ms |
| Average Seek | 10.9ms |
| Average Latency | 4.20ms (nominal) |
| Buffer | 16MB |
| Dimensions | 101.6 x 25.4 x 147mm (W x H x D) |
| Rotational Speed | 7200 RPM (nominal) |
| Weight | 630g |
