WD Caviar Black WD6401AALS 640 GB 3.5 Internal Hard Drive

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WD Caviar Black drives combine a high performance electronics architecture with a rock solid mechanical architecture to deliver the perfect storage solution for your fully-loaded PC or maxed out gaming machine. Cool drive operation, no-touch head technology, and leading-edge vibration protection ensure enhanced reliability and sustained data throughput. And we back it all up with a 5-year limited warranty.

How this WD hard drive protects your data?

Data Lifeguard is an exclusive set of data protection features, including shock protection, an environmental protection system and real-time embedded error detection and repair. WD's Data Lifeguard technology automatically finds, isolates, and repairs problems that may develop over the life of a hard drive.

Data Lifeguard Tools are software utilities designed for WD hard drives that work with the embedded Data Lifeguard features to make hard drive installation,diagnostics and repair both simple and worry-free. (Download Data Lifeguard Tools)

ShockGuard instantaneously protects the hard drive against damage from bumps and vibrations while it is running. This technology enables WD Caviar drives to achieve industry-leading shock specifications

Features

	Dual processor - Twice the processing power to maximize performance.
	32 MB cache - Bigger, faster cache means faster performance
	StableTrac - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations.
	NoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.
	Massive Capacity - WD Caviar Black SATA drives are available in capacities up to 1 TB.
	Compatible - We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab and Mobile Compatibility Lab to give our customers confidence that our drives will work in their systems

Tech Specs

	Performance Specifications
	Buffer To Host (Serial ATA): 3 Gb/s (Max)
	Physical Specifications
	Formatted Capacity: 640,135 MB
	Capacity: 640 GB
	Interface: SATA 3 Gb/s
	User Sectors Per Drive: 1,250,263,728
	Physical Dimensions
	Height: 1.028 Inches
	Length: 5.787 Inches
	Width: 4.00 Inches
	Weight: 1.52 Pounds
	Environmental Specifications
	Operating Shock (Read): 30G, 2 ms
	Non-operating Shock: 250G, 1 ms
	Idle Mode: 25 dBA (average)
	Seek Mode 0: 29 dBA (average)
	Seek Mode 3: 26 dBA (average)
	Operating: 32° F to 140° F
	Non-operating: -40° F to 158° F
	Humidity Operating: 5-95% RH non-condensing
	Humidity Non-operating: 5-95% RH non-condensing
	Altitude Operating: -1,000 feet to 10,000 feet
	Altitude Non-operating: -1,000 feet to 40,000 feet
	Vibration Operating: 0.004 g²/Hz (10 to 300 Hz)
	Vibration Non-operating: 0.05 g²/Hz (10 to 300 Hz)
	Operating Linear: 20-300 Hz, 0.75 G (0 to peak)
	Operating Random: 0.004 g²/Hz (10 to 300 Hz)
	Non-operating Low Frequency: 0.05 g²/Hz (10 to 300 Hz)
	Non-operating High Frequency: 20-500 Hz, 4.0G (0 to peak)
	Electrical Specifications
	12 VDC Read/Write: 490 mA
	12 VDC Idle: 470 mA
	12 VDC Standby: 5 mA
	12 VDC Sleep: 5 mA
	5 VDC Read/Write: 500 mA
	5 VDC Idle: 420 mA
	5 VDC Standby: 160 mA
	5 VDC Sleep: 160 mA
	Power Dissipation Read/Write: 8.3 Watts
	Power Dissipation Idle: 7.7 Watts
	Power Dissipation Standby: 1.00 Watts
	Power Dissipation Sleep: 1.00 Watts

BloomReach Content

Western Digital Caviar Black 640GB SATA 3 Gb/s 32 MB Cache 7200RPM Desktop Internal Hard Drive - OEM/Bare - WD6401AALS

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