TP-LINK 5-Port Gigabit Desktop Switch with 4-Port PoE,TP-LINK 5-Port Gigabit Desktop Switch with 4-Port PoE, For an example, Port 1, 2 and 4 is using 15,4W (maximum power for per port is 15,4W); the system power is 46,2W in total,Power over Ethernet 4 of the 5 Auto-Negotiation RJ45 ports (Port 1 to Port 4) of the switch support Power over Ethernet (PoE) function.Gigabit Desktop Switch with 4-Port PoE TP-LINK 5-Port.