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640GB Caviar Green SATA II 3.5" Internal Hard Drive - 16MB Cache

Western Digital 640GB Caviar Green SATA II 3.5

More From: Western Digital

Item #: 8853121

Mfr. Part#: WD6400AACS

Availability: In Stock

Est. Ship: Available - Ships in 24 Hrs

WD Caviar GP drives support quieter, cooler-running desktop PCs and external storage devices that conserve critical power resources!

640GB Caviar Green SATA II 3.5" Internal Hard Drive - 16MB Cache - WD6400AACS

Serial ATA 7-pin connector
8.9ms Average seek time / Up to 7200rpm performance
Spindle speed is 7200rpm / Buffer size is 16MB cache
Warranty: 3 Years

As hard drive capacities increase, the power required to run those drives increases as well. The 640GB WD Caviar GP makes it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.

By adjusting the rotational speed, using bigger data buffers, parking the drive's head, and optimizing how the drive seeks and caches data, WD has reduced power consumption by up to 38 percent. IntelliPower technology offers a fine-tuned balance of spin speed, transfer rate and cache size designed to deliver both significant power savings and solid performance. IntelliSeek technology calculates optimum seek speeds to lower power consumption, noise and vibration.

Connectivity
Connector	Serial ATA 7-pin
Connector Type	SATA 3.0 Gbps
General
Enclosure Type	Internal
Form Factor	3.5"
Target Use	Computer
Performance
Average Seek Time	8.9 ms
Buffer Size, Cache	16 MB
Data Transfer Rate	3 Gbps
Storage
Spindle Speed	7200 rpm
Hard Drive Capacity	640 GB
Actual Weight	1.61 lb(s)
Contents	drive, documentation
Memory Notes	Buffer: 16MB
Physical Dimensions	1"h x 4"w x 5.8"d
Ports/Connectors	SATA 7-pin port
Power Notes	Power Dissipation: Read / Write: 6.0 Watts Idle: 3.3 Watts Standby: 0.97 Watts Sleep: 0.97 Watts
Returns Policy	This product is subject to our return policy. Please see our complete return policy for details.
Warranty - Labor	3 Years
Warranty - Parts	3 Years