RJ-45 10/100/1000 ports 8 1G Combo/SFP uplink ports 0/2 PoE ports 0 802.3af/at ports 0 Switching Capacity 20 Gb/s Operating temperature 0 C to +45 C, 32 F to +113 F Storage temperature -25 C to +70 C, -13 F to +158F Humidity (operating and storage) 5% - 95% Fan (variable speed) Fan-less Acoustic (dB) 0db (A) System Power Consumption (full load) 19.8 W PoE power budget (watts) N/A