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Item#: N82E16822236713

WD My Book Thunderbolt Duo 4TB 3.5" Thunderbolt Dual-drive Storage System Model WDBUPB0040JSL-NESN

Refurbished newegg

  • Model WDBUPB0040JSL-NESN
  • Thunderbolt
  • 3.5"
  • 4TB
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Learn more about the Western Digital WDBUPB0040JSL-NESN


My Book Thunderbolt Duo


Formatted for Mac OS X Snow Leopard or Lion operating systems. Compatibility may vary depending on user's hardware configuration and operating system.



Physical Spec

Form Factor




Operating Systems Supported
Mac OS X Snow Leopard or Lion


System Requirements
Computer with Thunderbolt connector
Mac OS X 10.6.8 or higher
Thunderbolt cable (must be purchased separately)
Dimensions: 6.5" x 6.2" x 3.9"

Move data at unprecedented speeds

High-speed multi-tasking

User-configurable RAID for speed or double-safe data protection

Daisy chain several drives together for even faster speed

Configurable for maximum speed (RAID 0), data protection/mirror mode (RAID 1) or use the drives individually in JBOD mode.

High-capacity storage


WD Drive Utilities

Quick Info


  • Limited Warranty period (parts): 90 days
  • Limited Warranty period (labor): 90 days

Customer Reviews of the Western Digital WDBUPB0040JSL-NESN

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  • Robert R.
  • 9/15/2014 5:59:21 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFast , Cheap , Fast

Pros: Very Fast transfer rate for large transfers. Easily change RAID settings. Pre-Formatted for MACs.
Very quiet and runs cool

Cons: None so far, Does NOT include Thunderbolt cable... and this is the only type of connection port ( 2 ) on the drive. No USB or Firewire

Other Thoughts: Great deal on refurbished unit. I was a bit hesitant buying a "refurbished " storage drive unit, But the cost of this drive new was prohibitive for me.
This drive is working great so far. I just hooked it up, set my RAID preference to RAID 1 ( mirrored drives ) in the easy to use UI, ran a Time Machine backup, and transferred about 140GB of photos and videos in no time!

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Item#: N82E16822236713
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