This is a high performance Layer 3 Managed Switch that meets the next generation Metro, Data Center, Campus and Enterprise network requirements. It has high-density 24 10GBASE-SR/LR SFP+ slots, compatible with 1000BASE-SX/LX/BX SFP. 4 QSFP28 slots, each supports native 100 Gigabit Ethernet, 40G and 4 x 10 Gigabit Ethernet modes. RJ45 to DB9 console interface for switch basic management and setup.