Phanteks Enthoo Pro M PH-ES515PA_BK, Full Size Acrylic Window, Brushed Black Steel/Plastic Mid Tower ATX Chassis Motherboard Compatibility: Micro ATX / ATX / Mini ITX / E-ATX Front Ports: 2 x USB 3.0 / Audio 120mm Fans: Top: 3 x 120mm or 2 x 140mm fan Side Panel Window: Yes Internal 3.5 Drive Bays: 8 (2 included) Internal 2.5 Drive Bays: 3 (1 included) Expansion Slots: 7 140mm Fans: Front: 2 x 120mm fan (3 x 120mm fan without ODD cage) or 2 x 140mm fan (1 x 140mm included) x0ARear: 1 x 120 /140mm fan (1 x 140mm fan included)