RGS-R9004GP+ME-HV is Layer-3 modular managed redundant ring Ethernet switch with 6 slots, up to 48 ports, and has 4 fixed 10G SFP+ ports. With such high port density and modular design, it makes network planning easier. With completely support of Ethernet Redundancy protocol, O-Ring (recovery time < 30ms) and MSTP (RSTP/STP compatible) can protect your mission-critical applications from network interruptions or temporary malfunctions with its fast recovery technology. And support wide operating temperature from 0 oC to 60 oC RGS-R9004GP+ME can also be managed centralized and convenient by Open-Vision, as well as the Web-based interface, Telnet and console (CLI) configuration. Therefore, the switch is one of the most reliable choice for highly-managed and Fiber Ethernet