SilverStone CFP52B 5.25-Inch to 3.5-Inch Bay Converter with Hot-Swappable Function (Black) Supports SilverStone CP05 adapter to make any 3.5"SATA hard drive hot-swappable Converts three 5.25 bays into four 3.5 bays Includes 120mm fan with hot swap bracket Anti-vibration design for reducing noise Compatible with Kublai series cases