500 GB on this size - and then another fast USB 3! Excellent! I no longer need the main drive in my computer actually. Nevertheless Synchronize so now and then still. I use the encryption offered because I have sometimes even lost a USB stick. However, I do not know if I would do (with encryption) again. I use the plate at home and at work. On each machine, the part must be installed before the first use. And I for my workstation - and possibly other machines on the network - have no admin powers associated with effort and you always have a spare stick here. But otherwise nothing negative to say. Small and Super.