. Construction Ventilation: Flow-through ventilation from front to back. Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation. Air Volume Requirements (per minute per unit): 80.15 ft³ (2.27 m³). Dimensions: EIA Standard 19-inch (48.3-cm) rack mount width (EIA RS-310-B), 3.5-inch (8.9-cm) height and 14-inch (35.6-cm) depth behind the mounting surface. Weight Net Weight, XLS-602: 27.2 lbs. (12.3 kg). Shipping Weight, XLS-602: 32.2 lbs. (14.6 kg).