The SilverStone FP55B 5.25in to 2.5in/3.5in Bay Converter is capable of accommodating two additional 2.5in hard drives or SSDs (9.5mm thickness) in addition to a 3.5in device or drive. The FP55 features a brushed aluminum front panel and also has two sets of mounting holes so users can choose to install the FP55 with its aluminum bezel exposed or concealed behind an existing case's own drive bay cover.