Edge-Core ECS5610-52S Layer 3 Switch - Manageable - 52 x Expansion Slots - 10GBase-X, 40GBase-X - Uplink Port - Modular - 48, 4 x Expansion Slot, Expansion Slot - Optical Fiber - 10 Gigabit Ethernet, 40 Gigabit Ethernet - 48 x SFP+ Slots - 3 Layer Supported - Power Supply - 1U High - Rack-mountable - 5 Year: