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 quality of services qos vlan port mirroring flow control power over ethernet poe backplane bandwidth 256 gbs packet forwarding rate 7142 interface 1x console rj 45 mac address 32 k buffer 8 192 kbit flash memory 512 mb uplink port 4 x sfp