Drobo is different because regardless of which drobo you use we make sure that it can be setup easily in minutes can expand without tools by installing larger drives at any time and that your data is always protected drobos are self healing self managing and even self optimizing drobo will even let you know when yoursquore running low on capacity and need to install bigger drives you insert the drives but drobo will take care of the rest so whether you are looking for a direct attache