Supermicro SC743 AC-668B - tower - 4U - extended ATX

Optimized for enterprise-level high-capacity storage applications, Supermicro's SC847 series chassis features hot-swap HDD bays as SAS3 server chassis, or hot-swap HDD bays as SAS3 JBOD. 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. Equipped with platinum level high-efficiency redundant power supplies and 7 hot-plug redundant cooling fans. SC847 with SAS3 support is the work horse for high-density storage applications and a reliable, hassle-free maintenance storage system.