24-port Gigabit switch base unit with a total of 3x module slots to accommodate KS-2422 switch modules, installation of up to 3x 8-port Gigabit and Fast Ethernet modules on the front, management via SNMP, console, Telnet and web browser, supports spanning tree, IGMP , RMON, VLAN, port trunking, port mirroring, QoS, ToS, SSH and HTTPS, full and half duplex on all ports, universal and flexible use through different module variants, power supply via terminal block +/-40 to 72VDC, incl .19' mounting kit