Our most dense storage enclosure yet, the ToughArmor MB516SP-B. With space available for 16 x 2.5" SATA / SAS drives up to 7mm in height, it fits in only two 5.25" bays, making it perfect for high density storage applications. It features our unique EZ-Slide Nano trays that make installing drives a snap, and are compatible with several other ToughArmor models such as MB998 series. Its large 80mm user-controllable fan runs quietly, utilizing its many ventilation holes for maximum airflow at minimal RPM ranges. The fan has 3 modes the user can set; high, low, and off. The MB516SP-B features a rugged heavy duty full-metal housing designed to meet high IOPS requirement which are generally found in Enterprise environments, Military systems, Medical systems, high performance computing and industrial settings.