Hot-swap Tray MCP-220-00043-0N is a 3.5 to 2.5 inch Supermicro adapter in silver-black color.
It allows devices such as 2.5-inch hard drives to be mounted in bays designed for 3.5-inch drives. Especially useful in older cases that did not have dedicated bays for 2.5-inch drives.
Dedicated for Supermicro SC847E16-R1400LPB housing.