Rackmount switch poe switch switching ports 48 gigabit ethernet ports 48 x rj 45 fast ethernet ports 48 x rj 45 ethernet ports 48 x rj 45 switch type stackable management managed layer 3 network standards vlan spanning tree protocol stp quality of services qos port mirroring jumbo frames full duplex flow control energy efficient ethernet power over ethernet poe backplane bandwidth 136 gbs packet forwarding rate 101 interfaces 1x management rj 45