The S5730-SI series switches (S5730-SI for short) are next-generation standard gigabit Layer 3 Ethernet switches. They can be used as an access or aggregation switch on a campus network or as an access switch in a data center. The S5730-SI series switches provide flexible full gigabit access and cost-effective fixed GE/10 GE uplink ports. Meanwhile, the S5730-SI can provide 4 x 40 GE uplink ports with an interface card.