IDS-205G-CSS10U-XT Industrial Managed Switch, 5 ports: 4 x 10/100/1000Base-T Base-T RJ-45 ports and 1 x 1000Base-BX, 1310nm TX / 1490nm RX single strand single mode port with simplex (BIDI) SC connector [ 10km/6.2 miles ]. -40 to 75C industrial extended operating temperature.