Moxa Unmanaged Gigabit Industrial Ethernet Switch, 6 x 10/100/1000Base-TX, RJ45, 2 x Gigabit Combo Copper / Fiber SFP Ports, Alarm Relay Output, IP30 Metal Housing, Class 1, Div. II Rated, 0 to +60 deg. C. (SFP Modules Sold Separately)