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Home  >  Internal Hard Drives >  Item # WDBSLA0040HNC (MFR# WDBSLA0040HNC-NRSN)
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Desktop Performance 4 TB Hard Drive
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Western Digital Desktop Performance 4 TB Hard Drive

Condition: Brand new, USA Warranty
WD Black hard drives are designed for enthusiasts and creative professionals looking for leading-edge performance. These 3.5-inch desktop drives and 2.5-inch mobile drives are perfect for high-performance applications like gaming and photo editing.

WD Desktop performance hard drives are designed for enthusiasts and creative professionals who want leading-edge performance. Upgrade your desktop with these high-performance drives that are perfect for demanding applications like photo and video editing, graphics and multimedia design, gaming and power PCs. These reliable drives are backed by a 5-year limited warranty.

High performance electronics - WD Desktop performance drives feature a dual processor and bigger, faster dynamic cache for maximum read and write speeds.

Dual processor - Twice the processing power to maximize performance.

Dynamic Cache - WD?s dynamic caching algorithm improves performance in real time by optimizing cache allocation between reads and writes. For example, if there?s an overwhelming percentage of read traffic as opposed to write traffic, the drive automatically allocates more cache for read data, which reduces congestion and improves overall drive performance.

Rock-solid mechanical architecture - Enhanced reliability features help protect the drive and the data stored on it.

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.

The WD advantage - WD puts our products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. On average, each new product goes through 600,000 hours of testing. WD also has a detailed Knowledge Base with more than 1,000 helpful articles. You can also call toll-free support 7 days per week in the U.S. and Canada. See the WD Support site for full details.

Upgrading your drive is easy - Seamlessly migrate your current system to your new WD drive using Acronis True Image WD Edition, available as a free download on the WD Support site. This software enables you to copy all your data to a new drive so you don?t have to reinstall your operating system to get all the benefits of a new drive.


  • Windows 8, Windows 7, Windows Vista, Windows XP
  • Mac OS X Mountain Lion, Lion or Snow Leopard

Note: Windows XP does not support drives with capacities greater than 2TB. Compatibility may vary depending on user?s hardware configuration and operating system.

Minimum Requirements

  • SATA host adapter card or SATA interface connector in motherboard
  • Available 3.5" internal drive bay
  • SATA cable sold separately


  • Maximum performance for demanding applications
  • High reliability and cutting-edge technology
  • Free Acronis True Image WD Edition cloning software
  • Industry-leading 5-year limited warranty

Ideal For

  • Power computing applications
  • Graphics and multimedia design
  • Video and photo editing
  • Upgrading gaming computers


  • Performance enhancing features deliver the speed you need for demanding applications
  • High reliability and cutting-edge technology help protect the drive and your data stored on it
  • Massive capacity for your creative inspirations
  • Use Acronis True Image WD Edition cloning software to transfer information from your old drive to your new in minutes


  • Average latency - 4.2 ms
  • Average read seek - NA
  • Battery - No
  • Cache Read - Adaptive
  • Cache Write - Yes
  • Buffer - 64 MB
  • Data transfer rate - 6 Gb/s
  • Disk Capacity - NA
  • Drive Bays - NA
  • Form factor - 3.5 in
  • Bytes per sector (STD) - 512
  • Dedicated landing zone - Yes
  • Actuator latch/auto park - Yes
  • Interfaces - SATA 6 Gb/s
  • Memory - NA
  • Processor - NA
  • Rotational Speed - 7200 RPM
  • Tape Drive - NA
  • Write Speed - NA

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Western Digital Desktop Performance 4 TB Hard Drive

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