Optimized for enterprise-level high-capacity storage applications, Supermicro's SC847 chassis features 36x 3.5" hot-swap HDD bays as server chassis or 45x 3.5" hot-swap HDD bays as JBOD chassis in a 4U space. The SC847 design offers extra high-density of HDD per space ratio in a 4U form factor, high power efficiency, optimized HDD signal trace routing and improved HDD tray design to dampen HDD vibrations and maximize performance. SC847 is a reliable and hassle-free maintenance storage system.