Sans Digital MobileSTOR TRAYCASS Removable Tray + Case Plus (Silver) Tray Module Compatible with the following RAID subsystems: MS2U+(B) MS2T+(B) MS2UT+(B) MS2UTN+(B) MN4L+(B) MS1UT MS2UT MS2C1 MR5S1 MR5CT1 Aluminum design. Blue LED display. Hot-swappable design. Package comes with screws and key.