Features

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General
Sales Package Portable Hard Drive, USB Cable, Quick Start Guide  Portable Hard Drive, USB 3.0 Cable, Quick Install Guide  Portable Hard Drive, USB 3.0 Cable, Quick Install Guide  Storejet 25M3, Quick Start Guide, USB Cable
Model Name HD-B2/LC1 IN// HD-B2/LO1 IN  WDBHDW0040BBK-EESN  WDBS4B0020BWT-WESN  StoreJet 25M3
Type HDD  HDD  HDD  HDD
Capacity 2 TB  4 TB  2 TB  2 TB
Color Blue  Black  White  Iron Gray
System Requirements Windows Vista, Windows 7, Windows 8, Windows 8.1, WindowsView More... Windows 7, Windows 8, Windows 8.1, Windows 10  Windows 7, Windows 8, Windows 8.1, Windows 10  Windows 7 /8/8.1/10, Mac OS X 10.7 or later, Linux Kernel View More...
Form Factor Portable  Portable  Portable  Portable
Wired|Wireless Wired  Wired  Wired 
Cloud Backup No  No  No  No
Additional Features
Number of Ports 1  1
Connector Type USB 3.1 (Micro-B Type)  Micro B
Data Transfer Rate 5 GB/s  5 GB/s  5 GB/s  USB 3.0 -5gb/S
Shock Resistant Yes
Backward Compatible Yes Yes
Password Protection Yes Yes
Other Features NTFS File System  Lightweight  Designed to Fit in the Palm, Back Up Automatically, Easy View More... Quick Reconnect Button - safely re-enable the removed har View More...
Rotational Speed 5400 RPM
Water Resistant No
Encryption Built-in 256-bit AES Hardware Encryption with WD SecurityView More... 256-bit AES file & folder encryption
Case Material Metal  Rubber
Power Features
Power Source USB Powered 
External Power Required No  No  No  No
Power Requirement DC 5 V  USB DC 5V
Power Consumption 900 mA (Max) 
Dimensions
Width 81 mm  82 mm  81.5 mm  8 mm
Height 118 mm  110.5 mm  110 mm  129 mm
Depth 17 mm  21 mm  13.8 mm  20.4 mm
Weight 180 g  234 g  170 g  0.23 g
Warranty
Warranty Summary 3 Years Limited Warranty  3 Years Limited Warranty  3 Years Worldwide Warranty  By Manufactured
Warranty Service Type Carry In  Carry In  Carry In  Carry In
Covered in Warranty Manufacturing Defects  Manufacturing Defects  Manufacturing Defects  StoreJet 25M3
Not Covered in Warranty Physical Damage  Physical Damages  Physical Damages  Physically Damaged Or Burnt
Domestic Warranty 3 Year  3 Year  3 Year