It is simple and fast USB v2 writing speed about 30mb/s and USB v3 about 80mb/s, simple to connect using simple phone micro USB cable for usb v2. Works well with linux(android, ubuntu) and windows(xp, 7, 8) haven't tested with mac or other OS. For android device you Need additional power supply. I have never lost data with it. Now I use it to strore all types of data, instaled ubuntu in it and I can't complain, speed is perfect. Recommend for all.