. Model Pure Base 501 DX WhiteColor option WhiteMotherboard compatibility ATX / M-ATX / Mini-ATXCase size excl. stands (L x W x H), (mm) 450 x 231 x 449Case size incl. stands (L x W x H), (mm) 450 x 231 x 463Volume (l) 24.4PSU form factor ATX PS/2Net weight (kg) 7.8Expansion slots 7 Pre-installed fans Fan at top 1x Pure Wings 3 140mm PWMFan at front 1x Pure Wings 3 140mm PWMFan at rear 1x Pure Wings 3 140mm PWMDimensions (L x W x H), (mm) 140 x 25 x 140Fan speed at 100% PWM / 12V (rpm) 1200Airflow at 100% PWM / 12V (CFM / m3/h) 57.4 / 97.5Air Pressure at 100% PWM / 12V (mm H2O) 0.96Noise level at 100% PWM / 12V (dB(A)) 21.9Voltage range (V DC) 5 - 13.2Input power (W) 3.6Input current (A) 0.06Connector 4-pin PWMLifespan (h / 25°C) 80,000 Maximum fan installation Maximum fans 6Top (mm) 2x 140 / 2x 120Front (mm) 2x 140 / 3x 120Rear (mm) 1x 140 / 1x 120 Optional radiator installation Top (mm) 120 / 240Front (mm) 120 / 140 / 240 / 280 / 360Rear (mm) 120 / 140PSU compatibility Maximum dimensions excl. bottom fan (mm) 200Maximum dimensions incl. bottom fan (mm) 180 Graphics card HDD cage (in height of graphics card) installed (mm) 368HDD cage (in height of graphics card) removed (mm) 368Maximum PCIe slots with vertical graphics card (pcs.) 5 Drive bay capacity 3.5 slots (scope of delivery) 23.5 slots (max.) 22.5 slots (scope of delivery) 52.5 slots (max.) 5 I/O Panel USB 3.2 Gen. 2 Type C 1USB 3.2 Type A 2HD Audio I/O Mic + Audio Insulation and damping Side panel insulation mats ✓Anti-vibration decoupled HDD ✓Anti-vibration decoupled PSU ✓