Cisco UCS 6454 Fabric Interconnect - Switch - Managed - 36 X 10/25 Gigabit SFP28 + 4 X 1/10/25 Gigabit SFP28 + 6 X 40/100 Gigabit QSFP28 (uplink) + 8 X 10/25 Gigabit Ethernet Or 8/16/32 Gigabit Fibre Channel - Front To Back Airflow - Rack-mountable - UCS-FI-6454