From factory only the first two external ports 17 and. This is a Brocade full Fibre Channel switch.
Dell Brocade M5424 Driver And Firmware Downloads
The M5424 offers 16 internal ports connecting to the FC Mezzanine cards in the blade-servers and 8 external ports.
. It uses either the B or C fabrics to connect the Fibre Channel mezzanine card in the blades to the FC based storage infrastructure. PowerConnect M5424 Brocade 5424.
