OS6855-24 Hardened Gigabit Ethernet L3 fixed configuration chassis in a 1U form factor designed to operate in harsh environments. It has 22 SFP ports which support various distances, and 2 combo ports. On the combo ports, either RJ-45 connectors individually configurable to 10/100/1000 BaseT or fiber SFP can be used on a one for one basis. The bundle comes with OS6855-PSL power supply, power shelf, country specific power cord, user manual access card and rack mounts.