Hi friends I wanted an external HDD beacuse my Macbook air SSDwas running out of space .after some reserch, I found that WD my passport 2 TB version . It has 256 bit hardware encryption feature .it provide an extra layer of security without impacting an performance .
USB 3.0 this ensure maximum transfer rate in or out depending on the host you connect it to .it get around 80 MbB/sec or more sequential write speed and about 40 MB/sec read speedly mainly beacuse of my hardware limitation .its USB 2.0 compatible so you dont have to warry if you have USB 3.0 port .
Its automaticlly enter into sleep/power down mode if you dont access it for you while
Works great with mac .
You should register your device as soon as you receive it to avail full warranty .the HDD slim , light weight and portable and bought it for Rs 6500.overall I am satified with this product for now.thanks.