External Hard Drives Comparison

Western Digital Elements Portable 250GB , Western Digital My Passport Essential 500GB
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Western Digital Elements Portable 250GB

Western Digital My Passport Essential 500GB

 General
 Average seek time    
 Cache size 8 MB  8 MB   
 Hot-Plug No Yes   
 RAID No No   
 Rotational speed 5400 RPM 5400 RPM   
 Connectors
 eSATA No No   
 Firewire No No   
 Networking No No  
 S-ATA No No  
 USB No Yes   
 USB version 2.0 2.0  
 Design
 Available colours Black Black, Blue, Red, Silver, White   
 Dimensions
 Dimensions (WxHxD) 79 203.82 124.4 mm 80 15 127 mm   
 Form factor 2.5 inches  2.5 inches   
 Weight 155 g  180 g   
 Features
 Built-in support for encryption No Yes   
 Display No No   
 Power supply
 Power supply Powerline, USB USB   
 Storage
 Hard drive size 250 GB  500 GB   
 Price/GB $0.48 / GB  $0.30 / GB   
 Number of hard drives 1 pc 1 pc   
 Miscellaneous
 Manufacturer warranty  3 Years   
 Release year 2 year 2008  
 Links
 Product page  http://www.wdc.com/en/products/products.aspx?id=440  
 Manual    
Warranty 0 0
Price 6,550-Rs 6,899-Rs