Cisco IE 1000-4P2S-LM Industrial Ethernet Switch - 4 Ports - Manageable - 2 x Expansion Slots - 1000Base-X, 10/100Base-TX - Uplink Port - Modular - 4 x Network, 2 x Uplink - Twisted Pair, Optical Fiber - Gigabit Ethernet, Fast Ethernet - 2 x SFP Slots - 2 Layer Supported - Rail-mountable: