OS6855-U10 Hardened Gigabit Ethernet L3 fixed configuration fanless chassis in a 1U form factor designed to operate in harsh environments. It has 2 RJ-45 connectors individually configurable to 10/100/1000 BaseT. and 8 SFP ports which support various distances. The bundle comes with OS6855-PSS-D power supply. power shelf. user manual access card and rack mounts. Ethernet optical transceivers and backup power supplies can be ordered separately.