Cisco WS-C2924M-XL-EN-DC

24 switched 10BASE-T/100BASE-TX ports, and 2 module slots, DC-powered

Environmental Operating Ranges
Operating temperature: 32 to 113°F (0 to 45°C)
Storage temperature: -4 to 149°F (-10 to 65°C)
Operating humidity: 10 to 85% (noncondensing
Operating altitude: Up to 10000 ft (3000 m)
Storage altitude: Up to 15000 ft (4570 m)

Power Requirements
DC Input voltages: +5V@12A, +12V@0.55A, +5V@22A, +12V@0.75A (with 2 modules installed)
Power consumption: 90W (maximum) 307 Btus per hour, 170W (with two modules installed) 580 Btus per hour

Physical Dimensions
Weight: 13.5 lb (6.12 kg), 15 lb (6.8 kg with two modules installed)
Dimensions (H x W x D): 3.46 x 17.5 x 12 in. (8.8 x 44.5 x 30.5 cm)