The Dell HGV5J is a 3.5-inch drive caddy tray or sled - primarily used for large form factor (LFF) hard drives in Dell Compellent and EqualLogic storage systems. Its compatible with various Dell storage arrays and enclosures - including the SCv2080 - SC280 - SC180 PS6610 and PS6610E. The HGV5J allows for hot-swapping of drives and is often paired with SAS or SATA drives.