Moxa (RKS-G4028-L3-PoE-4GS-2HV-T) Layer 3 modular managed Ethernet switch with 4 100/1000BaseSFP ports, 3 slots for Ethernet modules, PoE Ethernet module supported, 2 isolated power supplies (110/220 VAC/VDC), -40 to 75°C operating temperature

• Meets a wide range of demands from Fast Ethernet to full Gigabit industrial networks (up to 28 Gigabit ports)
• Modular interfaces for flexible connector type combinations
• Support for IEEE 802.3bt PoE for up to 90 W output per port
• High EMC immunity compliant with IEC 61850-3 and IEEE 1613
• Hardware-based IEEE 1588 PTP for high-precision time synchronization
• Turbo Ring and Turbo Chain (recovery time < 20 ms @ 250 switches) , and STP/RSTP/MSTP for network redundancy
• Supports MXstudio for easy, visualized industrial network management
• IEC 62443-4-2 Security Level 2 certified
• -40 to 75°C operating temperature range