Rackmount switch poe switch switching ports 28 gigabit ethernet ports 20 x rj 45 4 x sfp fast ethernet ports 20 x rj 45 ethernet ports 20 x rj 45 switch type standalone layer 2 network standards quality of services qos vlan port mirroring jumbo frames power over ethernet poe flow control spanning tree protocol stp backplane bandwidth 56 gbs packet forwarding rate 4166 interface 1x console rj 45 max power consumption 2384 w mac address 16 k