Optimized for enterprise-level high-capacity storage applications, Supermicro's SC846 Chassis features 24 hot-swap 3.5" SAS3/SATA hard drive trays in JBOD chassis, and 2 fixed internal hard drive bays in server chassis in 4U space. The SC846 design offers high-density HDD per space ratio in a 4U form factor, high power efficiency (Titanium Level and Platinum Level), optimized HDD signal trace routing and improved HDD tray design to dampen HDD vibrations and maximize performance. Equipped with 1000W Titanium Level(96%) or 1280W Platinum Level(95%) high-efficiency redundant power supplies and 5 hot-plug redundant cooling fans. The SC846 with SAS3 support is a reliable and hassle-free maintenance storage system.