2 Gigabit plus 16 Fast Ethernet ports for copper and fiberTurbo Ring and Turbo Chain (recovery time < 20 ms @ 250 switches), RSTP/STP, and MSTP for network redundancyTACACS+, SNMPv3, IEEE 802.1X, HTTPS, and SSH to enhance network securityEasy network management by web browser, CLI, Telnet/serial console, Windows utility, and ABC-01IntroductionThe EDS-518A is a standalone 18-port managed Ethernet switch that provides 2 combo Gigabit ports with built-in RJ45 or SFP slots for Gigabit fiber optic communication. The Ethernet redundant Turbo Ring and Turbo Chain (recovery time < 20 ms) increases the reliability and speed of your network backbone. The EDS-518A also supports advanced management and security features.