This switch is the internal version of the well-known netFiber 9 switch - used by many small and medium-sized internet service providers for reliable 10-gigabit fiber optic connections spanning over 100 meters. With five 1G SFP ports, four 10G SFP+ ports, and an additional Gigabit Ethernet port, it's the perfect upgrade for existing CRS212 configurations. You get a modern ARM v7 processor, 256 MB of RAM, and improved cooling. The new Marvell switch chips provide phenomenal performance!