I have been using this portable 500GB drive since more than a year and its real handy to backup files or save big files. It uses usb 2.0 connectivity and its good for regular use. However, the newer ones makes use of usb 3.0 which has a faster rate of transfer of data. I think the cost of this will further go down this year and in line with Moore's law.This year for the same cost, I can but almost double the memory with usb3.0 connectivity. So, bear this is mind when considering your memory needs.