Transition Networks Managed Hardened Gigabit Ethernet PoE+ Rack Mountable Switch - 16 x Gigabit Ethernet Network, 4 x Gigabit Ethernet Expansion Slot, 2 x 10 Gigabit Ethernet Expansion Slot - Manageable - Optical Fiber, Twisted Pair - Modular - 4 Layer Supported - Rack-mountable - 5 Year Limited Warranty: