Components Specification Dimensions(mm) 490mm(D) Ã?430mm(W) Ã? 45mm(H) Materials 1.0mm SGCC Zinc-Coated Steel,Aluminium hanging handle HDD bay 6 x 3.5" HDD bays Cooling Fan 4pcs 80mm fan position,standard chassis with 3pcs 8025 fans PSU form factor conpatible with Standard 1U ,2U and PS/2 power supply M/B form factor Support motherboard size up to 12"*9.6" USB port one USB ports in front Epansion slot seven half-height PCI/PCIE expansion slots System Control Power switch,Reset switch,Power LED ,HDD LED Application Srorage,security,Internet and other application servers