The Obsidian Series™ 900D Super Tower PC case gives you lots of room, serious expansion flexibility and incredible cooling performance in a rugged, builder-friendly design.
Ten expansion slots
Fits up to nine hard drives or SSDs, with three hot-swap mounts
Four 5.25” optical drive bays
Room for dual power supplies
And if nine hard drives or SSDs aren’t enough, you can expand to 15 drives by adding additional drive cages (available separately). Includes three AF120L 120mm front intake fans and one AF140L 140mm rear exhaust fan
15 total fan mount locations
Five radiator mounting points
Four removable dust filters