Supports up to SSI-EEB motherboards_x000D_ Includes 2 x Air Penetrator 184i PRO fans for superior air intake_x000D_ Supports 360mm liquid cooling radiator_x000D_ 8 PCI expansion slots_x000D_ Reserved sliding rail mounting holes for quick rail installation_x000D_ Includes one USB Type-C interface_x000D_ Upright or horizontal placement flexibility_x000D_ Secondary PSU can be installed if 3.5" drive cage is to be left unoccupied