Rackmount switch poe switch switching ports 48 gigabit ethernet ports 48 x rj 45 switch type stackable management managed layer 3 network standards jumbo frames quality of services qos flow control energy efficient ethernet full duplex vlan spanning tree protocol stp igmp snooping power over ethernet poe backplane bandwidth 216 gbs packet forwarding rate 1309 interfaces 1x console rj 45 1x console usb type b 1x usb type a 1x management rj 45 jum