The ComNet CNGE24MSS2-OB is a Managed Ethernet Switch with sixteen 10/100/1000 Mbps TX ports and eight 100/1000 Mbps SFP* ports that use ComNet SFPs for fiber type, connector type and distance. This switch also includes two sets of bypass ports that ensure network integrity during power loss or maintenance. The CNGE24MSS2-OB is IEEE802.3-compliant and offers multiple Ethernet redundancy protocols (ComRing, C-Ring, and MSTP/RSTP/ STP) which protect your applications from network interruptions or temporary malfunctions by redirecting transmission within the network. Unlike most Ethernet switches, these environmentally hardened units are designed for deployment in difficult operating environments, and are available for use with either conventional CAT-5e copper or optical transmission media.