Cisco Catalyst WS-C2960S-48FPS-L Stackable Ethernet Switch - 48 Ports - Manageable - 4 x Expansion Slots - 10/100/1000Base-T - 48, 4 x Network, Expansion Slot - Optical Fiber, Twisted Pair - Gigabit Ethernet - 4 x SFP Slots - 2 Layer Supported - Redundant Power Supply - 1U High - Rack-mountableLifetime Limited Warranty