The rear panel includes one 120mm fan, just like the one on the front panel.
Dark Force has 8+1 expansion slots and three holes for water cooling. A glance at the rear panel reveals an important thing – Dark Force is wider than classic midi-tower cases. The right side panel isn’t very close to the I/O panel, which is good as it means extra room for cable management. The expansion slot covers features air inlets and they are fixed with thumb screws, which are also used to lock expansion cards.
Bottom panel supports 120 and 240mm radiators. You can optionally place one 120/140mm fan here. There are two dust filters on the bottom, one below the fan exhaust and one below the PSU. Filters cannot be easily removed and it is easier to clean the dust from the surface.
The feet are made with anti-vibration rubber coating underneath to suppress vibration noise. The feet are stable and tall enough to allow the air to be drawn in from the bottom of the case.