StarTech.com's ATXMINI325V is a value-added case designed for easy system assembly and easy maintenance. Opening the case to access internal components is fast and easy thanks to thumbscrews retaining the side access panels. And speaking of system building and upgrading, the ATXMINI325V features 5 drive bays that provide extra capacity for future drive expansion. Front I/O ports can be easily added by installing a StarTech.com 35BAYPANEL into one of the exposed 3.5 drive bays.