Features

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General
Sales Package Portable Hard Drive, USB 3.0 Cable, Quick Install Guide  1 Portable SSD, Type-C Cable (18 inch), Type-C to Type-A View More... USB Data Cable  External Solid State Drive
Model Name WDBS4B0020BWT-WESN  STCM500401  Storejet 25H3  MU-PA500B/WW
Type HDD  SSD  HDD  SSD
Capacity 2 TB  500 GB  4 TB  500 GB
Color White  Grey, Black  Purple  Blue
System Requirements Windows 7, Windows 8, Windows 8.1, Windows 10  Windows 7 or Higher, Mac OS X 10.9 or Higher  MicroSoft Windows 7/8/8.1/10/ Mac OS X 10.7 or Later /LinView More... Windows 7, Mac OS X 10.9 (Mavericks), Android 4.4 (KitKat View More...
Form Factor Portable  Portable  Portable  Portable
Wired|Wireless Wired  Wired 
Cloud Backup No  No  No  No
Additional Features
Number of Ports 1  1 
Connector Type Micro USB to USB Type A  USB Type-C to A
Data Transfer Rate 5 GB/s  500  5Gb/s  Upto 540 Mbps
Shock Resistant Yes Yes Yes
Backward Compatible Yes Yes Yes
Password Protection Yes Yes Yes Yes
Other Features Designed to Fit in the Palm, Back Up Automatically, Easy View More... Sleek, Stylish and Ultra-modern Design, Lightweight and SView More... 256-bit AES file & folder encryption, Military-grade shocView More... UASP Mode: Support, Security: Portable SSD Software, Mult View More...
Rotational Speed 5400 RPM 
Water Resistant No  No 
Encryption Built-in 256-bit AES Hardware Encryption with WD SecurityView More... 256  AES 256-bit Hardware Encryption
Case Material Plastic  Rubber 
Disk Buffer 8 
Power Features
Power Source USB Powered 
External Power Required No  No  No 
Dimensions
Width 81.5 mm  79 mm  74 mm
Height 110 mm  57.3 mm
Depth 13.8 mm  9 mm  10.5 mm
Weight 170 g  82 g  298 g  51 g
Other Dimensions Length: 94 mm  5.19" x 3.18" x 0.96" 
Warranty
Warranty Summary 3 Years Worldwide Warranty  3 Years  By Manufactured  3 Years Limited Warranty
Warranty Service Type Carry In  Carry In  Carry in Service Center  Carry In
Covered in Warranty Manufacturing Defects  Manufacturing Defects  Portable Hard Drive  Manufacturing Defects
Not Covered in Warranty Physical Damages  Physical Damage  Physically Damaged Or Burnt  Physical Damages
Domestic Warranty 3 Year  3 Year  1 Year