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

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Product Summary
Manufacturer: Western Digital
Mfg Part#: WD6401AALS
UPC: 00718037734026
Buy.com Sku: 209246370
Item#:
Buy.com Sales Rank: 853
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Product Guides
 

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

      
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    Customer Reviews
    Value 5
    Performance 5
    Ease of Use 5
    Overall Satisfaction 5
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    1 of 1 customers found this review helpful.
     
    5 of 5 fantastic and best purchase i ever made Tuesday, April 07, 2009
    Techno Geenus from Texas  

    i normaly buy hard drives from an other place but they dont know how to package them for shipping always arrived ok but never lasted long so i gave buy.com a chance and wow i was surprised with the way it came packged great job HD was safe in the box from now on im buying all my HD's from buy.com
     
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    5 of 5 Excellent hard drive for a reasonable price Monday, March 23, 2009
    tom from Harbor Oaks, Florda  
    I used mine to replace my C:/ drive that was getting noisy. I am not very tech savy but found it to be an easy swap out and installation. When it fires up, you will be guided step by step of what to do. This drive is quiet and I am well pleased with the performance. Now I have discovered how easy it is... I plan to purchase one more to fill that empty slot in my desktop computer.
     
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    5 of 5 Quiet, fast, easy to setup Sunday, March 08, 2009
    Anirban from College Park, MD  
    Quiet, easy to set up. I moved all my previous data (including multiple partitions and OSs using Acronis), replaced the old drive, and was up and working in no time. I've become a diehard WD fan now (started with my notebook, then a mybook, ad now this one). Buy.com shipped it on time, so high marks to them too.
     
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    5 of 5 Very fast and quiet Monday, February 02, 2009
    SK from Jacksonville, FL  
    You cannot go wrong with this drive. It is fast and quiet.
     
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    5 of 5 Great Drives Monday, January 19, 2009
    A Customer from Raleigh, NC  
    I bought 2 of these HDDs for use in a RAID 1 configuration in the Linksys NAS200. I have had these up and operational for 2+ weeks and setup was easy and everything has worked flawlessly. I recommend these drives and pretty much all WD HDDs as I've had great success with their products over the years.
     
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    5 of 5 Great hard drive Wednesday, January 14, 2009
    jonny from Chicago, IL  
    All of the reviews are right... this is a quiet drive and very fast!
     
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    5 of 5 No Issues Whatsoever! Wednesday, January 14, 2009
    A Customer from Westlake, OH  
    Installed and functioned without a hitch. 5 year warranty, Vista64 rates as 5.9 (highest it gives) on performance scale, and no abnormal sounds. It works, is a HDD, and performs well.
     
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