BE QUIET ! Dark Base 900 silver, silented (BG012)

external: 2x 5.25"
Internal: 7x 3.5" (transverse, HDD rails) or 14x 2.5" (transverse, HDD rails), 1x 2.5"
Front I/​O: 2x USB-A 3.0, 2x USB-A 2.0, 1x headphone, 1x microphone
PCI-slots: 8
Fan(s) (front): 2x 140mm, 1000rpm, 1x 140mm (optional)
Fan(s) (rear): 1x 140mm, 1000rpm
fan (left): 2x 140mm (optional)
fan right: not available
Fan(s) (top): 1x 200mm or 1x 180mm or 3x 140mm or 4x 120mm (optional)
Fan(s) (bottom): 2x 140mm (optional)
fan (other): not available
Motherboard: to E-ATX
Power supply: ATX
Power supply position: bottom
CPU Coolers: to max. 185mm height
Graphics Cards: to max. 323mm (472mm without HDD-cage)
Colour: black/​silver, inside black/​silver
Dimensions (WxHxD): 242x585x577mm
Capacity: 81.69l
Weight: 14.20kg
Special features: front door, cable management, dust filter, integrated fan control, motherboard sled, motherboard can be turned