Product Name Aquila Dimension (L) 390 x (H) 403x (W) 265mm Drive Bay 5.25" External x 1 (tool-free retainers) 3.5“/2.5” Internal x 2 (tool-free retainers) 2.5” Internal x 2(tool-free retainers Expansion Slot 4 slots, tool free PCI slot covers (330mm support) Motherboard Support Micro ATX Mini-ITX Power Supply Standard P/S2(ATX) or EPS Cooling System Front Fan: Preinstalled 200mm fan, Optional 120mm or 140mm fan Rear Fan: One 120mm/140mm fan Preinstalled one 120mm silent Xigmatek XOF white fan Top Fan: Two 120/140mm fans optional I/O Panel USB 3.0 x 2, HD Audio in/out jacks Max Graphic card Length 330mm