Rackmount switch poe switch switching ports 48 gigabit ethernet ports 2 x rj 45 4 x sfp fast ethernet ports 48 x rj 45 ethernet ports 48 x rj 45 switch type stackable layer 2 network standards quality of services qos vlan flow control spanning tree protocol stp power over ethernet poe packet forwarding rate 714 flash memory 32 mb uplink port 48 x auto mdimdi x link protocols 10base t 100base tx mode store and forward routing ipv6 dimensions