Toshibha 2 TB External HDD is compact in size and fastest in reading and writing speed. I am using this from Last 1.5 yrs and no issue even I travel a lot while carrying it so compact. Black in color and that time I got a deal price of Rs.5500. Its USB 3.0 it goes in sleep mode if you are not using for long period say approx 10 minutes while connected to laptop or PC. Its good coz it supports the drive usage life and as soon as you access it wakes in few seconds. Value for money.