Introducing the Moxa RKS-G4028-4GS-HV-T Modular Managed Ethernet Switch With 4 100/1000Basesfp Ports, 3 Slots For Ethernet Modules, 1 Isolated Power Supply (110/220 Vac/Vdc), -40 To 75C Operating Temperature. We offer the best price and excellent service. Our dedicated team is here to find your perfect solution. Request a quote or contact us now for prompt assistance.