Features

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General
Sales Package Portable Hard Drive, USB 3.0 Cable, Quick Install Guide  Storejet 25M3, Quick Start Guide, USB Cable  External Solid State Drive  My Passport Hard Drive, USB 3.0 Cable, WD Backup, WD Secu View More...
Model Name WDBS4B0020BWT-WESN  StoreJet 25M3  MU-PA500B/WW  My Passport
Type HDD  HDD  SSD  HDD
Capacity 2 TB  2 TB  500 GB  1 TB
Color White  Iron Gray  Blue  Red
System Requirements Windows 7, Windows 8, Windows 8.1, Windows 10  Windows 7 /8/8.1/10, Mac OS X 10.7 or later, Linux KernelView More... Windows 7, Mac OS X 10.9 (Mavericks), Android 4.4 (KitKatView More... Formatted for Windows 7, Windows 8, Windows 10, Requires  View More...
Form Factor Portable  Portable  Portable  Portable
Wired|Wireless Wired  Wired
Cloud Backup No  No  No 
Additional Features
Number of Ports 1 
Connector Type Micro B  USB Type-C to A 
Data Transfer Rate 5 GB/s  USB 3.0 -5gb/S  Upto 540 Mbps  USB 2.0: 480 Mb/s, USB 3.0: 5 Gb/s
Shock Resistant Yes Yes Yes
Backward Compatible Yes Yes
Password Protection Yes Yes Yes Yes
Other Features Designed to Fit in the Palm, Back Up Automatically, Easy View More... Quick Reconnect Button - safely re-enable the removed harView More... UASP Mode: Support, Security: Portable SSD Software, MultView 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  AES 256-bit Hardware Encryption  Yes
Case Material Rubber 
Power Features
External Power Required No  No  No
Power Requirement USB DC 5V 
Dimensions
Width 81.5 mm  8 mm  74 mm  37 mm
Height 110 mm  129 mm  57.3 mm  9.4 mm
Depth 13.8 mm  20.4 mm  10.5 mm  78.2 mm
Weight 170 g  0.23 g  51 g  170 g
Warranty
Warranty Summary 3 Years Worldwide Warranty  By Manufactured  3 Years Limited Warranty  2 Years + Additional 1 Year Extended Warranty
Warranty Service Type Carry In  Carry In  Carry In  3 Years Limited Warranty
Covered in Warranty Manufacturing Defects  StoreJet 25M3  Manufacturing Defects  Manufacturing Defects
Not Covered in Warranty Physical Damages  Physically Damaged Or Burnt  Physical Damages  Warranty does not cover physical damage
Domestic Warranty 3 Year  3 Year