Material: Zinc-Coated Steel External Bay: 3x5.25" Internal Bay: 4x3.5 Cooling fan:2x 80mm infront + 2 x 60mm fan at rear M/B size: Use ATX M/B support 2 x 5.25 / use Micro ATX / MiniITX M/B support 3 x 5.25 Expansion Slots: 8 Supports SFX and SFX-L Power Supply only With dust filter bracket in front easy maintenace