The Zy XEL XGS Series of L3 switches enable enterprise & SMB businesses to deploy high availability networks to meet the need to migrate to a virtualized & consolidated solution. The evolution to the virtualized network meets the increasing demands in server utilization & availability within the business today. The XGS4700 & XGS4500 Series compliments the network infrastructure of virtualization as both Series deliver not only robust, reliable enterprise-class L2/L3 switch features but are also designed to accomplish high-availability routing for better utilization of network bandwidth. The Zy XEL XGS4700 Series consists of two models: XGS-4728F & XGS4700-48F. The XGS-4728F offers 24 dual-personality 1000BASE-T copper/SFP fiber ports, 2 built-in 12G Gigabit CX4 stacking interfaces & 1 open slot for the optional 10G Gigabit EM-422/412 uplink module which supports up to 2 10G transceivers. The XGS4700-48F offers 48 SFP Gigabit Ethernet ports plus 2 open slots for 2 10G Gigabit EM-422/412 uplink modules which support up to 4 10G transceivers.