Rackmount switch poe switch switching ports 48 gigabit ethernet ports 48 x rj 45 4 x sfp fast ethernet ports 48 x rj 45 4 x sfp ethernet ports 48 x rj 45 4 x sfp switch type stackable management managed layer 2 network standards spanning tree protocol stp vlan quality of services qos jumbo frames power over ethernet poe backplane bandwidth 192 gbs packet forwarding rate 7142 interfaces 1x serial db 9 1x usb type a mac address 8 k buffer 1