Do you have a question about the Corsair OBSIDIAN 900D and is the answer not in the manual?
| Type | Full Tower |
|---|---|
| Motherboard Compatibility | E-ATX, ATX, Micro-ATX, Mini-ITX |
| External 5.25" Drive Bays | 4 |
| Internal 3.5" Drive Bays | 9 |
| Expansion Slots | 10 |
| Cooling Support (Front) | 3 x 120mm or 2 x 140mm |
| Cooling Support (Top) | 3 x 120mm or 2 x 140mm |
| Cooling Support (Bottom) | 2 x 120mm |
| Included Fans | 3 x 120mm (Front), 1 x 140mm (Rear) |
| Radiator Support (Front) | up to 360mm |
| Radiator Support (Bottom) | up to 240mm |
| Radiator Support (Side) | up to 240mm |
| Power Supply Support | Standard ATX |
| Max GPU Length | 450 mm |
| Max CPU Cooler Height | 180 mm |
| Material | Steel, Aluminum, Plastic |
| Cooling Support (Rear) | 1 x 120mm |
| Cooling Support (Side) | 2 x 120mm |
| Front Ports | 2 x USB 3.0, 1 x Headphone, 1 x Microphone |
Lists all hardware components and quantities included with the PC case for installation.
Details the various mounting options, drive bays, I/O ports, and other case functionalities.











