IE-1000-4P2S-LM – Cisco Industrial Ethernet 1000 Series 4-Ports 10/100BASE-TX PoE+ Layer 2 Rail-mountable Managed Network Switch with 2-Ports SFP https://techsellerusa.com/product/ie-1000-4p2s-lm-cisco-industrial-ethernet-1000-series-4-ports-10-100base-tx-poe-layer-2-rail-mountable-managed-network-switch-with-2-ports-sfp/