18-Port Gigabit Rackmount Switch with 16 PoE 16× gigabit PoE RJ45 ports, 2× gigabit non-PoE RJ45 ports, and 2× combo gigabit SFP slots High PoE power budget with up to 30 W for each PoE port and 250 W for all PoE ports Working with IEEE 802.3af/at compliant PDs Plug and play, with no configuration and installation needed 802.1p/DSCP QoS enable smooth latency-sensitive traffic Durable metal casing and professional heat dissipation design ensure a wide operating temperature range (0-50C)