WS-C3750G-12S-S Cisco Catalyst 3750G-12S-S 12 port Managed rack mountable switch
Cisco StackWise technology unites up to nine Catalyst 3750 switches into a single logical unit via special stack interconnect cables. WS-C3750G-12S-S Cisco Catalyst 3750G-12S-S SMI - Switch - Gigabit EN + 12 x SFP (empty) - 1 U external.