Rackmount switch poe switch switching ports 48 gigabit ethernet ports 48 x rj 45 2 x sfp fast ethernet ports 48 x rj 45 ethernet ports 48 x rj 45 switch type standalone management managed layer 2 network standards full duplex flow control energy efficient ethernet spanning tree protocol stp vlan quality of services qos jumbo frames igmp snooping multicast power over ethernet poe backplane bandwidth 136 gbs packet forwarding rate 1012 max power