first of all i didnt expect the size it comes with fits in the palm of the hand so much light weightspeed is also descent got around 120mbsno sound while transferring datai transferred around 600gb data from my laptop which have 1tb of hard drive with single click and it takes me around 25 hours it gets heated while transferring but its okay because is should not have transfer that amount of data with single click but in the end no problemsgo for it i got it around 4800 for 2tb i