? (24) Gigabit RJ45 ports ? (2) SFP ports ? (1) Serial console port ? Non-blocking throughput: 26 Gbps ? Switching capacity: 52 Gbps ? Forwarding rate: 38.69 Mpps ? Maximum power consumption: 250W ? Supports POE+ IEEE 802.3at/af and 24V Passive PoE ? Rackmountable Dimensions 485.04 x 44.45 x 285.6 mm (19.1 x 1.75 x 11.24″) Weight 3.7 kg (8.16 lb) Total Non-Blocking Throughput 26 Gbps Switching Capacity 52 Gbps Forwarding Rate 38.69 Mpps Max. Power Consumption US-24-250W 250W Power Method 100-240VAC/50-60 Hz, Universal Input Power Supply US-24-250W AC/DC, Internal, 250W DC Networking Interfaces (24) 10/100/1000 Mbps RJ45 Ethernet Ports (2) 1 Gbps SFP Ethernet Ports Management Interface (1) RJ45 Serial Port, Ethernet In/Out Band Certifications CE, FCC, IC Rackmount Yes, 1U High ESD/EMP Protection Air: ±24 kV, Contact: ±24 kV Operating Temperature -5 to 40° C (23 to 104° F) Operating Humidity 5 to 95% Noncondensing Shock and Vibration ETSI300-019-1.4 Standard PoE Per Port PoE Interfaces POE+ IEEE 802.3af/at (Pins 1, 2+; 3, 6-) 24VDC Passive PoE (Pins 4, 5+; 7, 😎 Max. PoE+ Wattage per Port by PSE 34.2W Voltage Range 802.3at Mode 50?57V Max. Passive PoE Wattage per Port 17W 24V Passive PoE Voltage Range 20-27V