Western Digital My Book 4TB, External hard drive (WDBFJK0040HBK-NESN)

Description

Up for sale is a Western Digital My Book with 4 terabtyes of storage space.  It operates over USB and is a great way to save things externally to prevent losing important data.   It's very fast over USB 3.0 but is backwards compatible with older USB connections.   I purchased this brand new so I am the only owner.   I recently upgraded to a much larger device so I no longer need this one.   It comes with power supply and USB cord (
NOTE!  Because I have multiple items for sale, the power supply and/or USB cord might be different than what is pictured
).   For any specific questions, please message me.   Below are the specs of this device.
My Book
Premium Storage
Model/Part No.
WDBFJK0040HBK
Capacity
4 TB
Interface
USB 3.0
USB 2.0
Height (in/mm)
6.7/171
Depth (in/mm)
5.5/139
Width (in/mm)
1.9/49
Weight (lb/kg)
2.27/1.03
Data Transfer Rate
Up to 5Gb/sec in USB 3.0 mode and up to 480 MB/sec in USB 2.0 mode
Operating Temperature
5°C to 35°C
Non-op Temperature
-20°C to 65°C
System Compatibility
Windows® 10, Windows 8 or Windows 7
**Requires reformatting for Mac OS® X **