be quiet! Dark Base Pro 901 – Technical Specifications
General Data
| Model | Dark Base Pro 901 |
| Color | Black |
| Motherboard Compatibility | E-ATX / XL-ATX / ATX / M-ATX / Mini-ATX |
| Case Dimensions (incl. stands) | 604 x 275 x 569 mm (L x W x H) |
| Case Dimensions (excl. stands) | 604 x 254 x 539 mm (L x W x H) |
| PSU Form Factor | ATX PS/2 |
| Net Weight | 17.8 kg |
| Expansion Slots | 8 |
Pre-installed Fans (Silent Wings 4 140mm PWM)
| Front | 2 x 140mm |
| Rear | 1 x 140mm |
| Fan Speed (100% PWM) | 1900 rpm |
| Airflow (100% PWM) | 78.4 CFM / 133.2 m³/h |
| Air Pressure (100% PWM) | 2.36 mm H₂O |
| Noise Level (100% PWM) | 29.3 dB(A) |
| Connector | 4-pin PWM |
| Lifespan | 300,000 h / 25°C |
| Fan Controller | 5-step controller with 2x PWM Hubs |
Maximum Fan Installation (Up to 11 Fans)
| Top | 3 x 140mm or 3 x 120mm |
| Front | 3 x 140mm or 3 x 120mm |
| Side | 3 x 120mm |
| Rear | 1 x 140mm or 1 x 120mm |
| Bottom | 1 x 140mm or 1 x 120mm |
Optional Radiator Installation
| Top | 120 / 240 / 360mm |
| Front | 120 / 140 / 240 / 280 / 360 / 420mm |
| Side | 120 / 240 / 360mm |
| Rear | 120 / 140mm |
Component Compatibility
| Max CPU Cooler Height | 190mm |
| Max GPU Length | 495mm (350mm with HDD cage installed) |
| Max PSU Length | 325mm |
Drive Bay Capacity
| 5.25″ Bays | 1 |
| 3.5″ Bays | 2 (up to 7 max) |
| 2.5″ Bays | 6 (up to 16 max) |
I/O Panel & Lighting
| Front I/O | 1 x USB 3.2 Gen. 2 Type-C 4 x USB 3.2 Type-A Mic + Audio Jacks |
| Wireless Qi Charger | Yes (15W) |
| LED Illumination | Yes, ARGB (Synchronizable) |
Insulation and Damping
| Insulation Mats | Top, Front, Side Panels |
| Anti-vibration Decoupling | HDD, Fans, PSU, Motherboard Tray |
| Removable Dust Filters | Front, Bottom |
Scope of Delivery
- Screw set & Screw box
- Additional standoffs for E-ATX (x3)
- Cable ties (x12)
- VGA holder (for standard and inverted layouts)
- Mesh Front Panel
- ODD Bracket
- Fan / Radiator bracket for multi-mounting panel
Warranty & Logistics
| Warranty | 3 Years |
| Article Number | BGW50 |
| EAN Code | 4260052190142 |







